Russian drones will be equipped with a new inertial navigation system

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Russian Drones will receive a new strapdown inertial navigation system. The first deliveries of the new system are scheduled for this year. This was reported by the press service of Rostec.

The development of navigation systems was carried out by the specialists of the KRET holding. The novelty has already been tested on prototypes of Russian drones and will begin to be supplied in series this year.



The new strapdown inertial navigation system can determine coordinates and movement parameters even in the absence of any landmarks. The orientation and location of the drone is carried out relative to a given trajectory or target, including a moving one.

The system was based on developments previously used only in aircraft and helicopter construction.

(...) these systems are characterized by reliability, highest precision and versatility. They allow the drone not to depend on landmarks and weather conditions.

- said the executive director of Rostec Oleg Yevtushenko.

The new navigation system ensures the highest precision. When working with GPS or GLONASS, and this feature is built into the system, the error is less than 1%, with autonomous operation - less than 2%.

The use of the new navigation system when testing prototypes of Russian drones last year has shown high efficiency. According to the plans of the developers, this system will be installed on the UAV, which exactly, is not reported.
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    1. 0
      28 May 2021
      In general, has anyone come across the work with inertial systems of novigation, what do they eat it with?
      1. +3
        28 May 2021
        This is a complex algorithm for determining its location in three planes, taking into account the terrain, time, natural and weather anomalies, according to the parameters stored in memory without accessing external data. But periodic correction is also possible. This is if it's simple. Yes
        1. -10
          28 May 2021
          The principle is the same as the Tamogavkov, which is well laid out. There has to be some serious surface scanning radar!
          1. +3
            28 May 2021
            The radar helps to detect itself, and from "memory" - it is silently, in radio silence, without any radiation, when necessary, the rudders will steer where necessary.
            1. +2
              28 May 2021
              Quote: prior
              The radar helps to detect itself, and from "memory" - it is silently, in radio silence, without any radiation, when necessary, the rudders will steer where necessary.

              My judgment, of course, is at the level of an amateur - "somewhere, I heard something", but, under certain conditions, the radar can not be replaced or supplemented by a "lidar", a laser space scanner?
              On the principle of the "mute" optical-electronic sighting system OEPS-27, which has long been used on fighters of the Su family ...
              1. +7
                28 May 2021
                Educational program for dummies! ANN is an autonomous system that works independently and provides information about the orientation of the aircraft in space, including the course and the distance traveled. This is the basic (main) reference system on board the aircraft, which can be adjusted from other NS ...
                The principle of operation is based on counting readings from the initial platform set to the horizon with accelerometers (acceleration sensors) located on it. The operation of the system is based on maintaining the horizontal position of the platform or calculating its position and determining the distance traveled using acceleration sensors located on this platform using the integration method. Over time, the error in determining (calculating) the horizon accumulates and the errors in determining the orientation angles and the distance traveled grow ...
                The acceleration sensors, which are the basis of this system, use the principle of inertia to operate! Hence the name of the system: inertial navigation system - INS!
          2. +4
            28 May 2021
            Quote: tralflot1832
            The principle is the same as the Tamogavkov, which is well laid out. There has to be some serious surface scanning radar!

            Not necessary ! The "Tomogavks" use correlation systems (subsystems), incl. and "TERSOM" with "surface scanning radar ..." But there are other INS correction systems (the most famous is GPS)! Moreover, the ANN is capable of working autonomously without correction! True, the accuracy is reduced!
            1. -3
              28 May 2021
              Quote: Nikolaevich I
              But there are other ANN correction systems (the most famous is GPS)!

              GPS is not INS from the word at all. One is for satellites, and the other is INTERNAL (earlier on gyroscopes, now more on MEMS).
              1. +4
                28 May 2021
                Quote: professor
                GPS is not INS from the word at all. One is for satellites, and the other is INTERNAL (earlier on gyroscopes, now more on MEMS).

                Gospidya! Well, what is such a punishment to me for? Explain that I did not say that 2x2 = 5! And he said that 2x2 = 4! I beg you, before I get to the hospital with neurosis, to read my comment carefully again! Where I said that ANN is an inertial navigation system, and GPS is "in a compartment"
                works with ANN as a correlation subsystem!
                1. +3
                  28 May 2021
                  Quote: Nikolaevich I
                  Quote: professor
                  GPS is not INS from the word at all. One is for satellites, and the other is INTERNAL (earlier on gyroscopes, now more on MEMS).

                  Gospidya! Well, what is such a punishment to me for? Explain that I did not say that 2x2 = 5! And he said that 2x2 = 4! I beg you, before I get to the hospital with neurosis, to read my comment carefully again! Where I said that ANN is an inertial navigation system, and GPS is "in a compartment"
                  works with ANN as a correlation subsystem!

                  My joint. I was inattentive. recourse
          3. +1
            28 May 2021
            laughing or a map of the area, a point of report and understanding of your position .. on the BRM these are if I'm not mistaken
          4. +2
            28 May 2021
            Quote: tralflot1832
            The principle is the same as the Tamogavkov, which is well laid out. There has to be some serious surface scanning radar!

            ========
            And what, an optical or infrared image of the terrain cannot be used for "binding" to "reference points" ??? belay what
            PS By the way, some modern modifications of the same "Tomogavka" do not have a surveillance radar at all - only an electro-optical unit + INS + GPS!
            1. -1
              28 May 2021
              Quote: venik
              some modern modifications of the same "Tomogavka" do not have a surveillance radar at all - only an electro-optical unit + INS + GPS!

              Seems to me that you are "confusing a fork with a bottle"! Tomahawk finally does not have a "survey radar"! If you use your "term", then there was such a "surveillance radar" on the Pershing-2 MRBM! A radio altimeter is used on the CD! A 2-mode altimeter-profilometer is used on KR with TERSOM ...
              1. 0
                28 May 2021
                Quote: Nikolaevich I
                Seems to me that you are "confusing a fork with a bottle"! Tomahawk finally does not have a "survey radar"!

                =======
                The first versions did! The latter - no!
                WHERE is the "plug" and WHERE is the "bottle"? Or just like that: you wanted to "stand up"?
                PS The question is not WHAT is used for "mapping" the terrain: Surveillance radar or surveillance OLS! What's the difference? There is a "terrain map" and WHAT is the difference HOW is it obtained? That is the way radar, or by optoelectronic scan ??? Does this have a FUNDAMENTAL value? what fool
                1. 0
                  29 May 2021
                  You are not careful, both when writing your comments, and when reading the answers to them! By the way, among the "tomahawks" there was an anti-ship missile with an active radar seeker, but it has long been removed from service. The anti-ship missile systems did not have anti-ship capabilities ... In the latest modifications of the "Tomahawk" missile systems, the anti-ship (!) Capability returned in the form of an MST (multi-channel seeker) with the inclusion of a radar channel! But guidance with the "surveillance radar" or "officially" with the help of the "correlation-extremal (navigation) system" (KENS) or, more simply, the IES was applied on the "Pershing-2"! On the Soviet and American missiles "were" optoelectronic IES!
                  It turns out that your words: "the first versions had (radars), the latter did not" differ from reality with "exactly the opposite"! For "tomahawks" of "widespread use" did not have anti-ship use (work on moving targets) and an active radar seeker (the old Tomahawk anti-ship missile system with a limited range, issued in a limited number and long removed from service, I do not take calculation ...), but at present the anti-ship capability with ARLGSN has been returned to the "tomahawks" of the latest "models"! But this, first of all, the anti-ship MST, and not the navigation subsystem!
        2. +4
          28 May 2021
          Quote: prior
          This is a complex algorithm for determining its location in three planes, taking into account the terrain, time, natural and weather anomalies, according to the parameters stored in memory without accessing external data. But periodic correction is also possible. If it's simple
          Nonsense, what are the parameters stored in memory? An inertial system is a set of means for fixing accelerations, roll parameters, etc. no algorithm will work without them. Roughly speaking, an anchor point is set and from it, taking into account all these changes, the course is built and, if necessary, remembered.

          Inertial navigation is an autonomous navigation technique in which measurements provided by accelerometers and gyroscopes are used to track the position and orientation of an object relative to a known starting point, orientation, and speed. Inertial Measurement Units (IMUs) typically contain three orthogonal velocity gyroscopes and three orthogonal accelerometers that measure angular velocity and linear acceleration, respectively. Signal processing from these devices allows tracking the position and orientation of the device.
          1. -6
            28 May 2021
            Do you fly a lot with gyroscopes over the Kursk magnetic anomaly without taking into account the deviations it creates?
            1. +4
              28 May 2021
              You fly a lot with gyroscopes over the Kursk magnetic anomaly

              The magnetic field does not affect the operation of the gyroscope, it is not a magnetic compass.
              1. -2
                28 May 2021
                Yes. Maybe I incorrectly expressed myself specifically in terms of the work of gyroscopes. At short distances, small deviations for drones are quite acceptable. But at distances of thousands of kilometers, weather conditions, magnetic fields, engine operation, and terrain bending can introduce significant deviations into the flight route, for example, for RC, for which a deviation of hundreds of meters is unacceptable. I meant it. Or do you deny the influence of magnetic and gravitational fields on aircraft?
            2. 0
              28 May 2021
              The gyroscope on the drum is a magnetic anomaly, this is not a magnetic heading. This is its own coordinate system. Taking into account the distance traveled, remaining, lateral deviation from the track line. Correction is made by different methods.
            3. +1
              28 May 2021
              Quote: prior
              Do you fly a lot with gyroscopes over the Kursk magnetic anomaly without taking into account the deviations it creates?

              KMA is so powerful that it attracts planes ?! laughing Or do gyroscopes rotate differently in a magnetic field? I always believed that gyrocompasses were created because they do not care about magnetic fields.
          2. -1
            28 May 2021
            Quote: Vladimir_2U
            Nonsense, what are the parameters stored in memory? An inertial system is a set of means for fixing accelerations, roll parameters, etc. no algorithm will work without them. Roughly speaking, an anchor point is set and from it, taking into account all these changes, the course is built and, if necessary, remembered.

            =========
            That's right, but this is only for a strapdown ANN. When flying over a long distance, a system error in the determination of coordinates can accumulate. To eliminate this effect in "reference points"the INS data is corrected by comparing the images obtained by the onboard radar or the survey opto-electronic system with the" embedded "terrain maps, after which the processor enters the appropriate corrections into the system!
            Correction can also be carried out according to satellite navigation data! And also a combination of both methods. hi
        3. +2
          28 May 2021
          You are confusing different navigation systems, the inertial system is the main navigation system on submarines, what landmarks are used on a boat going underwater? Thanks to this system, the first lights without surfacing and correction of the submarine were carried out back in the sixties of the last century.
          1. 0
            28 May 2021
            Quote: Popandos
            You are confusing different navigation systems, the inertial system is the main navigation system on the submarine

            ======
            And where does the PL? Where is Rym, and WHERE is Crimea ??? Where is the submarine (submarine), and where is the aircraft (aircraft)?
            1. 0
              29 May 2021
              An aircraft has the ability to navigate by radio, by the underlying surface, by the stars, by the sun, by zepies, etc.
              And the nuclear submarine, while underwater, has only an inertial orientation system and the ability to correct for depths and EVERYTHING.
        4. The comment was deleted.
        5. 0
          28 May 2021
          Quote: prior
          This is a complex algorithm for determining its location in three planes, taking into account the terrain, time, natural and weather anomalies, according to the parameters stored in memory without accessing external data

          Rave. ANN determines the coordinates of the carrier according to the data obtained from the onboard accelerometers, by means of double integration. Accurate determination of the coordinates of the launch site is one of the most important conditions.
      2. +5
        28 May 2021
        Quote: tralflot1832
        what do they eat it with?

        Mostly with formulas. Just do not expect explanations from me, I myself am in shock wassat
      3. +1
        28 May 2021
        Didn't the fisherman have anything like that? How were they determined in the absence of coastal landmarks? The navigator, constantly sweating, ran across the bridge?
        The system is based on gyroscopes and accelerometers, the first devices appeared during the Second World War.
        1. +2
          28 May 2021
          Quote: Popandos
          The navigator, constantly sweating, ran across the bridge?

          And this is with all being equal only in two planes and the speed is low. And then they sweated wassat
          1. +1
            28 May 2021
            And then they sweated wassat

            Yes navigator do not sweat when plotting a course "by dead reckoning", as it is called in nautical navigation. But the accuracy there, of course, is lower. But I’ll tell you from my own experience, during the transition from Nakhodka to Japan, within three days of movement by dead reckoning and by the keen eye of the navigator, we went to the desired point with an accuracy of several miles.
            1. 0
              28 May 2021
              Quote: Stepan S
              went to the desired point with an accuracy of several miles.

              wassat wassat wassat It depends on which navigator. I know an orienteer who drew a map of Borovoy, and then walked there and got lost for almost a daygood
              1. 0
                28 May 2021
                laughing and here is the electronic navigator.
            2. 0
              28 May 2021
              keen eye of the navigator

              So I still ran to check the coastal landmarks. bully
          2. +1
            28 May 2021
            I'm a sucker, in MO it's always sweaty laughing
        2. 0
          28 May 2021
          I began to go to sea, when navigators had magic devices, a sextant, a gyrocompass and a radio direction finder, and on the wing of the bridge there was a gyrocompass with a bearing bar to the shore. And it never happened that the sea ended and the land began. showed the bottom topography strictly under the vessel.
      4. 0
        28 May 2021
        This is according to Newton - FSE free bodies move in a straight line
        1. +1
          28 May 2021
          the body moves evenly and rectilinearly, if no forces act on it, or the action of these forces is balanced
          1. 0
            28 May 2021
            Before getting kicked ...
        2. 0
          28 May 2021
          But what about the behavior of an animal or a person? Or is it not a "free body"?
      5. +2
        28 May 2021
        inertial systems of novigation, with what it is eaten?


        They eat with bread, so it's more satisfying .. wink Built on school principles. Speed ​​is the first derivative of distance, acceleration is the second. Acceleration is measured in three projections. Use gyroscopes. Recently, the so-called MEMS - pendulum type, pendulums etched directly into the microcircuit "swing", creating an electrical signal and reacting to movement. ...
        Integrate twice and get a curve from the starting point. If you do not correct (in any way, from radio technical to visual "Wow, Eiffel Tower, enter the coordinates", the error accumulates.
      6. 0
        28 May 2021
        from pedivikia about strapdown systems
        PS: no, it was not about that .. confused with analytical systems.
      7. +1
        28 May 2021
        In general, has anyone come across the work with inertial systems of novigation, what do they eat it with?
        In the very first approximation, this is a gyroscope + quartz watch + a set of accelerometers.
        The first sets the unchanged coordinate system, the second - counts the time of movement in the selected direction to calculate the distance traveled; the third track the uneven movement to determine the current speed. Everything in the complex allows you to track the trajectory of movement relative to the initial base point and calculate the current position of the vehicle in space.
        This is if you do not sound a number of additional subsystems, such as correction based on external data (from astro-correction to terrain scanning), spinning gyroscopes, actually computing power, a cartographic database, and so on.
      8. 0
        28 May 2021
        Inertial navigation is a method of navigation (determining the coordinates and parameters of movement of various objects - ships, airplanes, missiles, etc.) and controlling their movement, based on the properties of inertia of bodies, which is autonomous, that is, it does not require external landmarks or signals coming from outside.

        Inertia (from Latin inertia - rest, inactivity, constancy, immutability) is the property of the body to remain in some reference systems in a state of rest or uniform rectilinear motion in the absence of external influences, and also to prevent a change in its speed (both in modulus and in direction ) in the presence of external forces due to its inert mass.

        From robotics, if we understand it as an analogue of a living being, it is infinitely far away.
      9. 0
        29 May 2021
        Imagine that you can measure 3 components of the acceleration vector using three weights on springs. Knowing the previous accelerations, you can determine the vector of speed, and with the help of the speed and chronograph, you can perform dead reckoning. Only two constants are needed - the starting location and the speed. They are usually given at the airport. You can perform star correction (astrocorrection) and global positioning systems. Something like this...
        Sincerely
    2. -8
      28 May 2021
      The new navigation system ensures the highest precision. When working with GPS or GLONASS, and this feature is built into the system, the error is less than 1%, with autonomous operation - less than 2%.


      Catastrophe. 2% means that for every 1000 meters of flight, the drone is off track by 20 meters, for 100 km this is already 2 km. The Varangians in the Middle Ages more accurately determined the coordinates.
      The author did not confuse anything?
      1. +4
        28 May 2021
        The Varangians in the Middle Ages more accurately determined the coordinates

        In the afternoon on the Sun, I suppose? )))
        And then there is an error of 1% when operating at full power of the enemy's electronic warfare equipment.
        that for every 1000 meters of flight, the drone gets off the route by 20 meters, for 100 km this is already 2 km.

        I remember among amers that in the absence of external landmarks (tundra), the inertial does not work at all.
        1. -5
          28 May 2021
          Quote: lucul
          And then there is an error of 1% when operating at full power of the enemy's electronic warfare equipment.

          Why do you come up with "when working at full power of the enemy's electronic warfare means"? My wrist watch Garnin gives an error in navigation of a maximum of 10 meters, regardless of the distance traveled. 1% satellite error is a disaster.

          Quote: lucul
          I remember among amers that in the absence of external landmarks (tundra), the inertial does not work at all.

          What is this nonsense? Inertsialka does not know the tundra under the aircraft or the sea at all. Learn materiel and do not confuse INS with TERCOM.
          1. +7
            28 May 2021
            Professor, what do you want from ANN? Yes, this is not a GPS. ANN gives an error. It makes no sense to use it in everyday life, it's easier to use a narrow-eyed GPS rattle.
            But the ANN is not intended for that. When the big shukher is started with silence / chopping satellites and the conclusion of the ground radime, then without instances, everything would just get on joke.
            1. -5
              28 May 2021
              Quote: kit88
              Professor, what do you want from ANN? Yes it is not GPS... ANN gives an error. It makes no sense to use it in everyday life, it's easier to use a narrow-eyed GPS rattle.
              But the ANN is not intended for that. When the big shukher is started with silence / chopping satellites and the conclusion of the ground radime, then without instances, everything would just get on joke.

              The new navigation system ensures the highest precision. When working with GPS or GLONASS, and such a feature is built into the system, the error is less than 1%, during autonomous operation - less than 2%.
              1. +7
                28 May 2021
                I understand that we are talking about correcting coordinates from GPS
                1. -2
                  28 May 2021
                  Quote: kit88
                  I understand that we are talking about correcting coordinates from GPS

                  I understand that the author has confused something. By the way, who is the author?
            2. -2
              28 May 2021
              It makes no sense to use it in everyday life, it's easier to use a narrow-eyed GPS rattle.

              In everyday life, a person plays the role of ANN. And in the mechanical device that we are considering, the ANN, the basic system, in one form or another, must always be present ...
        2. -2
          28 May 2021
          Quote: lucul
          I remember among amers that in the absence of external landmarks (tundra), the inertial does not work at all.

          Do not write nonsense.
          According to the landmarks, the ANN is only corrected, and the ANN works autonomously.
        3. +2
          28 May 2021
          Quote: lucul
          By the sun, I suppose? )))

          When orienting by the sun, the error is on average 2-5 degrees, which is 7-18%. And the Professor does not own the material today. wassat Who said that the error is 2% per 1000 meters? Nobody except the Professor said that. The developer most likely gives an error for the range of the aircraft
          1. -6
            28 May 2021
            Quote: NDR-791
            Quote: lucul
            By the sun, I suppose? )))

            When orienting by the sun, the error is on average 2-5 degrees, which is 7-18%. And the Professor does not own the material today. wassat Who said that the error is 2% per 1000 meters? Nobody except the Professor said that. The developer most likely gives an error for the range of the aircraft

            Quote: NDR-791
            Who said that the error is 2% per 1000 meters? Nobody except the Professor said that. The developer most likely gives an error for the range of the aircraft

            Catastrophe. This is what I am writing about. With a drone range of 100 km, the error is 2 km, and with 1000 it is already 20 km. At least on our planet.
            1. +2
              28 May 2021
              Quote: professor
              This is what I am writing about.

              Just about, you are a Professor !!! What does 1km or 100km have to do with it ??? The task is to reach the target with an accuracy of, for example, 20 meters. An error of 2% means that the accuracy will be 20,4 meters. That's the whole story. And the range here does not play the piano at all.
              1. -7
                28 May 2021
                Quote: NDR-791
                Quote: professor
                This is what I am writing about.

                Just about, you are a Professor !!! What does 1km or 100km have to do with it ??? The task is to reach the target with an accuracy of, for example, 20 meters. An error of 2% means that the accuracy will be 20,4 meters. That's the whole story. And the range here does not play the piano at all.

                What kind of fantasies? The task is always one - to reach the target exactly. Military GPS allows you to determine the coordinates of the target with an accuracy of a meter. How much is it in percentage? Not much.
                The accuracy of commercial GPS is 5-10 meters, regardless of the distance traveled. How much is it in percentage? Not much.

                How accurately your drone will fly depends not only on the correctly defined coordinates, but also on the drone itself.
                When they write about an accuracy of 2%, they mean the accumulated error and, accordingly, 20 km per 1000 km.
                1. +2
                  28 May 2021
                  Quote: professor
                  Military GPS allows you to determine the coordinates of the target accurate to the meter. How much is it in percentage? Not much.

                  Here you yourself have stepped on your own rake wassat The article clearly states that when using GPS, the error is 1%. Without it, 2%. That is, according to your own words 1m. And accordingly, without GPS, 2%, that is, 2m.
                  1. -5
                    28 May 2021
                    Quote: NDR-791
                    Quote: professor
                    Military GPS allows you to determine the coordinates of the target accurate to the meter. How much is it in percentage? Not much.

                    Here you yourself have stepped on your own rake wassat The article clearly states that when using GPS, the error is 1%. Without it, 2%. That is, according to your own words 1m. And accordingly, without GPS, 2%, that is, 2m.

                    1% of what? State the value you are looking for.
      2. 0
        28 May 2021
        It seems to me that this is not tied to landmarks and terrain. If any, there will be a correction in any case.
        1. -3
          28 May 2021
          Quote: akropin
          It seems to me that this is not tied to landmarks and terrain. If any, there will be a correction in any case.

          What does the binding have to do with it. The inertial (commercial) is now like this:


          The binding is TERKOM
          1. 0
            28 May 2021
            The inertial system gives an error, I'm just talking about the option of its correction.
            1. -1
              28 May 2021
              Quote: akropin
              The inertial system gives an error, I'm just talking about the option of its correction.

              In this I agree. Today there is a tendency to abandon satellite navigation in the army.
      3. +1
        28 May 2021
        Catastrophe. 2% means that for every 1000 meters of flight, the drone is off track by 20 meters,

        No, it doesn't mean.
        Shl, and they also say that Soviet Jews could in mathematics.
        1. -7
          28 May 2021
          Quote: alexmach
          No, it doesn't mean.

          Uh-huh. 20 out of 1000 is not 2%

          Quote: alexmach
          Shl, and they also say that Soviet Jews could in mathematics.

          "could in mathematics" urinate? Express yourself more precisely.
          1. +2
            28 May 2021
            Uh-huh. 20 out of 1000 is not 2%

            Ok, in arithmetic you can, now read what you quoted again.
            "could in mathematics" urinate?

            Well, it probably could.
            1. -6
              28 May 2021
              Quote: alexmach
              Uh-huh. 20 out of 1000 is not 2%

              Ok, in arithmetic you can, now read what you quoted again.
              "could in mathematics" urinate?

              Well, it probably could.

              I still can't do that. Can you calculate 2% of 1000? wassat
              1. +1
                28 May 2021
                I can’t do that either

                I sincerely congratulate you on this. There is reason to be proud.
                Can you calculate 2% of 1000?

                I can sometimes even a little more. For example, to estimate what and from what to count.
                Who said that the error is 2% per 1000 meters? Nobody except the Professor said that.

                Who told you from what they counted these same 2%? where is it said in the phrase above? Have you invented it yourself?
                You mentioned your watch here, Guerin, I think I sincerely congratulate you on it, an excellent choice. But as soon as you get the idea that your watch gives positioning regardless of the distance traveled in your head, should it be somehow different in a navigation system with correction for the same satellites? But who cares, the main thing is to shout loudly about the disaster, and of course not to forget about your Guerin watch, or whatever it is.

                And the second thing. Even if we count the deviation from the traversed route, the phrases "the error is less than 2%" and "every 1000 meters deviates by 20", they seem to contradict each other. Mathematics dear professor is not only arithmetic. There is still a lot of things, smart people, and among them, by the way, there were also Jews, who were also very prominent, they came up with ideas.
                1. -4
                  28 May 2021
                  Quote: alexmach
                  Who told you from what they counted these same 2%? where is it said in the phrase above? Have you invented it yourself?

                  Enlighten. Tell us for one 20 from 1000 this is how much%. Let's see what non-Jews can do in mathematics. lol

                  Quote: alexmach
                  You mentioned your watch here, Guerin, I think I sincerely congratulate you on it, an excellent choice. But as soon as you get the idea that your watch gives positioning regardless of the distance traveled in your head, should it be somehow different in a navigation system with correction for the same satellites? But who cares, the main thing is to shout loudly about the disaster, and of course not to forget about your Guerin watch, or whatever it is.

                  Believe it or not, my GARMIN watch is a NAVIGATION SYSTEM powered by GPS and GLONASS. Just recently I downloaded the cycling route of the Upper and Lower Galilee on them, and having traveled more than 60 km along it, the accuracy of determining the route was the same 5-10 meters, not 1%. I have never lost my way in any forest. How so?

                  Quote: alexmach
                  And the second thing. Even if we count the deviation from the traversed route, the phrases "the error is less than 2%" and "every 1000 meters deviates by 20", they seem to contradict each other. Mathematics dear professor is not only arithmetic. There is still a lot of things, smart people, and among them, by the way, there were also Jews, who were also very prominent, they came up with ideas.

                  You should learn arithmetic first. I usually don't feed fat trolls. And I will stop you. hi
                  1. +1
                    28 May 2021
                    Tell us for one 20 from 1000 this is how much%. Let's see what non-Jews can do in mathematics

                    Do you all boast of knowledge of arephmetics? It turns out that you need not much to consider yourself a professor.

                    Believe it or not, my watch is GARMIN

                    Once again, I sincerely congratulate you, and on the watch, and on the bike, and on the 60 km route, this, in my opinion, is very good. Yes, and with a good climate too, and with good health. We are very happy for you.

                    You should learn arithmetic first

                    Yes, you are just elementary illiterate. Who needs your advice?
    3. -1
      28 May 2021
      It's time to bring up electronic systems and software, otherwise everything Chinese is still worth
      1. 0
        28 May 2021
        Quote: APASUS
        It's time to bring up electronic systems and software, otherwise everything Chinese is still worth

        _The largest Western tabloid became interested in the installation of Russian equipment, in particular navigation systems, on German submarines.
        _According to the best-selling German national Sunday newspaper in Berlin, Bild am Sonntag, we are talking about the St. Petersburg company "Transas", which is a developer, manufacturer and supplier of high-tech solutions and services for the maritime industry.
        _It follows from this publication that in 2005, during the leadership of the country by Federal Chancellor Gerhard Schroeder, several dozen submarines of the German Navy were equipped with instruments "Navi Sailor 4100", designed to determine the location, speed and route. These are the most modern German submarines U 35 and U 36, in service since 2015 and 2016.
        _ According to experts, it is possible that there is a built-in scheme that, with the beginning of hostilities, can, on command from the outside, introduce some kind of distortion, which in the future will lead to a complete loss of functionality of the submarine and ships equipped with this system. According to an unnamed naval officer, there is a high probability of intercepting all data on the ship's equipment. Separately, we note that the navigation system Navi Sailor 4100 is currently operating on almost 100 ships of the German navy .........
        1. 0
          31 May 2021
          Quote: Bad_gr
          Transas, a developer, manufacturer and supplier of high-tech solutions and services for the maritime industry.

          It is the only internationally recognized manufacturer of maps and navigation technologies for sea transport from Russia.
          Here there was material just now (I will not even look for it) in Syria, the Israelis, collected our downed UAVs, in order to assess the development of machines, after the sale of Russia by Israel.
          And the conclusion was simply disastrous. Nothing has changed at all.
    4. 0
      28 May 2021
      When working with GPS or GLONASS, and this feature is built into the system, the error is less than 1%, with autonomous operation - less than 2%.

      Some strange text. Inertial units accumulate error over time. For example, 50 meters of lateral error per hour of flight. And here is the interest, I do not understand.
    5. 0
      28 May 2021
      The implementation of orientation and determination of the location of the unmanned aircraft occurs relative to a given trajectory or target, including the moving.


      but this is useful not only for unmanned aerial vehicles.
      great news.

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