RU2297014C1 - Mode of detection of an object's trajectory - Google Patents

Abstract

FIELD: the invention refers to radiolocation and may be used for detecting of objects' trajectories in surveillance radar stations with phased array.

SUBSTANCE: the mode of detection of an object's trajectory is based upon an additional address to the object in the strobe of confirmation about detection of the object, the strobe is initiated through a small interval of time after detection of a reflected signal during regular surveillance. At that the value of the interval is chosen far less than the interval of time of addressing to the object in the strobe of capturing the trajectory. At that an additional "quick" addressing to the object in the strobe of confirmation of detection of the object allows: firstly, significantly accelerate measuring of the speed of high-speed objects and for certain execute extrapolation of coordinates and that is extremely important for securing effective destruction of such objects at sufficiently large distance; secondly, significantly decrease the number of reflections from passive interferences and reduce by this the number of trajectories formed according to them.

EFFECT: reduces number of false trajectories formed according to the reflections of passive interferences.

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Description

The invention relates to the field of radar and can be used to detect trajectories of objects in a survey radar stations (radar) with a phased antenna array (PAR).

A known method of detecting (capturing) the trajectory of an object, including emitting a sounding signal, receiving a reflected signal, detecting an object, examining an area around a detected object after a period of time accessing an object, extrapolating the coordinates of an object and inspecting a zone around an extrapolated point after a period of time accessing an object, extrapolating coordinates of the object and inspection of the area around the next extrapolated point after a period of time access to the object, etc., the decision to detect the trajectory of EKTA (Kuzmin SZ Digital processing of radar data. M .: Sov. radio, 1967 s.270-272).

The disadvantages of the method are a significant increase in the size of the trajectory capture gates with an increase in the speed of the object, which leads to a significant expenditure of time and energy resources of the radar when examining the gates, as well as a large number of false trajectories formed by reflections from passive interference, which significantly reduces the bandwidth of the radar.

Closest to the claimed one is a method of detecting an object’s trajectory, including emitting a probing signal, receiving a reflected signal, detecting a reflected signal during regular inspection of a radar field of view, calculating the boundaries of a trajectory capture strobe, inspecting a trajectory capture strobe after an access time to the object T ₃ and detecting the reflected signal in it, an estimate of the speed and direction of movement of the object, a calculation based on the estimates of the boundaries and inspection through the time interval of accessing the object cta T _PP sequentially first, second, ..., n-th strobe confirm capture path, deciding the detection path object if the reflected signal detected at the regular review radar coverage area, also detected in the capture path gate and one of n gates confirming the capture of the trajectory (Kuzmin SZ Fundamentals of the theory of digital processing of radar information. M: Sov. radio, 1974, p.198-200).

A capture gate is understood to be a region of space centered at the point of detection of the object, in which, with a fairly high probability, there will be an object moving in an unknown direction with the maximum possible speed for it, after a time equal to the period of access to the object in the capture gate of the trajectory (Kuzmin S. Z. Fundamentals of the theory of digital processing of radar information. M: Sov. Radio, 1974, p.199).

A capture confirmation strobe is a region in space in which, with a sufficiently high probability, an object will be located moving in the direction and with speed extrapolated based on previous data about the object, after a time equal to the period of access to the object in the trajectory capture confirmation strobe (ibid. )

It is known that in the radar field of view there are always some passive interference. They can be either of natural origin (for example, meteorological formation), or intentionally created (for example, dipole reflectors, intentionally scattered by the enemy in the radar's surveillance zone in order to hide the presence of their attack means). Therefore, often, reflections from passive interference are taken as reflections of the probe signal from the object. Trajectories formed by reflections from passive interference are false. Most of these trajectories are discarded after some time, but they divert the resources of the radar information processing system and thereby reduce the bandwidth of the radar.

Thus, a drawback of the closest technical solution is a significant number of false trajectories formed by reflections from passive interference. As a result, the radar information processing system is overloaded, the radar throughput is reduced.

The invention is aimed at eliminating this drawback.

The problem being solved (technical result), therefore, is to reduce the number of false trajectories formed by reflections from passive interference.

The specified technical result is achieved by the fact that in the method of detecting the trajectory of the object, including the radiation of the probing signal, receiving the reflected signal, detecting the reflected signal during the regular inspection of the radar field of view, calculating the boundaries of the trajectory capture gate, inspecting the trajectory capture gate through the time interval of access to the object T _З and detection of the reflected signal in it, estimation of the speed and direction of movement of the object, calculation based on the bounds made, and inspection after a time interval access to the object T _PZ sequentially of the first, second, ..., nth gates of confirmation of trajectory capture, making a decision to detect the trajectory of the object, if the reflected signal detected during regular review of the radar field of view is also found in the trajectory capture gate and in one from n gates to confirm the capture of the trajectory, according to the invention, after detecting the reflected signal during regular inspection of the radar field of view, the boundaries of the object detection confirmation strobe are additionally calculated, inspected after an interval l of the access time to the object T _ON1 , shorter than the interval of time to access the object in the capture gate of the trajectory Т _З , while if the reflected signal is detected in the confirmation confirmation gate of the object and the coordinates of the object corresponding to the detected signal are changed, then the speed is estimated and direction of the object’s movement, calculation based on the bounds made, and inspection of the first, second, ..., nth gates to confirm the capture of the trajectory through the time interval of accessing the object T _PZ , making a decision I’m about detecting an object’s trajectory if a reflected signal detected during a regular review of the radar's viewing area is also found in the object detection confirmation strobe and in one of the n trajectory capture confirmation strobe; if the reflected signal is detected in the object detection confirmation strobe, but the coordinates of the object corresponding to the detected signal have not changed, then the boundaries of the trajectory capture strobe are calculated, the trajectory capture strobe is examined after the time interval for accessing the object T ₃ and the reflected signal is detected in it, and the speed estimate and the direction of the object based on the calculation performed boundaries estimates and examination after the time interval T to the object handling _PP sequentially first, second, ..., n-th ACK strobes REPRESENTATIONS capture path, deciding the detection path object if the reflected signal detected at the regular review radar coverage area, also detected in the capture path gate and one of the n strobe confirm capture path; if the reflected signal is not detected in the object confirmation confirmation strobe, then the object trajectory is considered not detected and its detection is terminated,

and / or after detection of the reflected signal to the gate of the capture path further comprises calculating boundary strobe confirm detection object, examine it after a time interval treatment to T _PA2 object smaller than the interval time of circulation to an object in the gate confirm capture trajectory T _PL, wherein if a reflection signal is detected in the object detection confirmation strobe, then the trajectory is considered to be detected, if the reflected signal in the object detection confirmation strobe is not detected, then an estimate is made speed and direction of the object’s movement, calculation based on the bounds made, and inspection of the first, second, ..., nth traps of confirming the capture of the trajectory through the time interval of accessing the object Т _ПО3 , making a decision on detecting the trajectory of the object, if the reflected signal is detected during a regular review of the radar field of view, it was also found in the trajectory capture gate and in one of the n trajectory capture confirmation gates.

The specified result is also achieved by the fact that:

- the time intervals for accessing the object in the confirmation confirmation gate of the object T _ON1 , T _ON2 are selected based on the permissible average number of false trajectories generated by reflections from passive interference;

- the time intervals for accessing the object T _ON1 , T _ON2 are selected in the range of 0.1-0.5 s;

- the boundaries of the strobe confirmation confirmation of the detection of the object is calculated in accordance with the formulas:

- range: ΔR = ± (V _{R max} Т _ПОi + 3σ _R ),

where V _{R max} - the maximum radial velocity of the object;

σ _R is the standard deviation of the measurement of the distance R to the object;

i = 1, 2 - the strobe number of the confirmation of object detection, i = 1 corresponds to T _ON , i = 2 corresponds to T _{ON 2} ;

- in angular coordinates:

where α is the coordinate of the object in elevation or azimuth;

σ _α is the standard deviation of the measurement of the angular coordinate of the object α;

V _{α max} - the maximum speed of the object in the angular coordinate α.

The essence of the proposed technical solution is as follows.

In surveillance radars with tracking after detecting an object in a regular review, detection and tracking of its trajectory is carried out. It is known (Kuzmin SZ Fundamentals of the theory of digital processing of radar information. M: Sov. Radio, 1974, p. 280) that in survey radars the detection of the object’s trajectory is carried out in accordance with a criterion of the form 2 / m + 1 / n. In this case, the first part of the criterion (2 / m) is considered the criterion of trajectory capture, the second (1 / n) - the criterion of confirmation of trajectory capture. Capture trajectory made strobes capture path, examines a time interval T refer to the object _G. Confirmation of the capture of the trajectory is carried out in the strobe confirmation of the capture of the trajectory, examined at intervals of time access to the object T _PZ .

Thus, the trajectory of an object is considered to be detected if the object is detected at least two times in m consecutive attempts and then at least once in n subsequent consecutive attempts.

In practice, the value of m is often taken equal to 2, i.e. apply the criterion 2/2 + 1 / n. In this case, the object’s trajectory is considered to be detected if the reflected signal detected during regular inspection of the radar field of view is also detected in the trajectory capture strobe (i.e., twice in two possible attempts) and in one of the n trajectory trap confirmation gates.

The dimensions of the capture gates are calculated according to well-known formulas, based on the maximum possible speed of the object:

- in range:

where V _{R max} - the maximum radial velocity of the object;

σ _R is the standard deviation of the measurement of the distance R to the object;

- in angular coordinates:

where α is the coordinate of the object in elevation or azimuth;

σ _α is the standard deviation of the measurement of the angular coordinate of the object α;

V _{α max} - the maximum speed of the object in the angular coordinate α.

It is known that at present the speed of airborne objects has increased significantly. High-speed objects appeared. So, for example, the speed of a modern fighter can reach 800 m / s, tactical missiles - 6000 m / s. The minimum speed of the objects is almost zero. The capture trajectory of the object is known, the estimation and prediction of the object speed, so the magnitude of the time interval between detection of the object during the regular inspection of the radar coverage area and contact point to the object at the gates capture trajectory T _W should be chosen on the basis of measuring the speed requirements of any objects , i.e. both non-high-speed and high-speed. Historically, modern surveillance radars were designed for objects with low and medium speeds (up to 300 m / s), i.e. to non-high-speed objects. For this reason, in modern surveillance radars, the T ₃ value is units of seconds. When detecting the trajectories of non-high-speed objects, the sizes of the capture gates, calculated in accordance with formulas (1) and (2), have quite acceptable sizes.

Since the type of air attack means used by the enemy is almost impossible to predict in advance, the capture gate size should be calculated, including for high-speed objects, i.e. be big enough. However, the size of the capture gates when detecting high-speed objects in some cases is so large that their inspection due to the limited time and energy resources of the radar becomes almost impossible. This leads to a sharp decrease in radar throughput.

As already noted, in the space inspected by the radar, there are always passive interference. They can be either of natural origin (reflections from extensive meteorological events), or intentionally created (clouds of dipole reflectors created by the enemy to mask their air attack means). The significant size of the trajectory capture gates leads to the fact that a large number of reflections from passive interference get into them, along which, like objects, trajectories are formed. Most of these trajectories are discarded after some time, but they divert the resources of the radar information processing system and thus also reduce the radar throughput.

In the claimed technical solutions introduced an additional appeal to the object in the "strobe confirmation confirmation of the detection of the object." The confirmation _{flag for} detecting an object is assigned after a short time interval T _ON1 after detecting the reflected signal in a regular review. Moreover, the value of the interval T _TAG1 chosen significantly smaller than the reference time interval to an object in the gate capture trajectory T _W. Therefore, the magnitude of the strobe for confirming the detection of an object can be provided sufficiently small for high-speed objects.

This additional “quick” call to the object in the object detection confirmation strobe allows: firstly, to significantly speed up the measurement of the speed of high-speed objects and reliably extrapolate coordinates, which is extremely important to ensure effective destruction of such objects at a sufficiently long range, and secondly, significantly reduce the number of reflections from passive interference and thereby reduce the number of trajectories formed along them.

The first position is obvious, since a high-speed object, even in a short time T _PO1, will change its position in the strobe confirming the detection of the object relative to its position at the time of detection during regular inspection, which will be recorded during inspection of this strobe. Thus, the specified strobe for a high-speed object is actually a strobe capture gate, since it allows you to measure the speed and direction of movement of such an object.

The second point needs to be clarified.

It is known that passive noise distributed in space has a sufficiently large correlation interval. Therefore, when accessing them in the confirmation confirmation gates of an object after the moment of their detection during regular viewing at a time interval shorter than the correlation interval, most signals reflected from passive interference will be detected. Subsequently, these detected reflected signals become the beginning of new trajectories (false). However, if the time interval for accessing the object in the confirmation strobe for detecting the object is not so small, the number of passive interference detections will decrease. When choosing the time interval for accessing an object in the confirmation strobe for detecting an object, it is advisable to proceed from the permissible number of passive interference detections (and, accordingly, the number of false trajectories generated by reflections from them), for example, not more than 5% of the total number of reflections during regular review.

Thus, additional operations on the detected reflected signals obtained in the regular review and in the strobe for confirming the detection of the object can effectively reduce the number of trajectories generated by passive interference, without compromising the likelihood of detecting the trajectories of objects.

This is also confirmed by experiments conducted on the survey radar of the centimeter wave range over a long period of time (several years). So, the dependence of the average number of detected reflections on meteorological formation N _T when two consecutive calls to them relative to the total number of reflections N ₀ on the value of the time interval between two consecutive calls T _ON 1 ( _figure 1).

Taking into account the permissible average number of detected reflections from passive interference during two consecutive accesses (the number of trajectories generated from reflections from passive interference), the minimum time interval between accesses to the object can be determined from the above dependence during regular review and in the confirmation confirmation strobe of the object. So, for the permissible number of false trajectories generated by reflections from passive interference equal to 5% of the total number of reflections, the minimum interval for accessing the object should be set to about 0.1 s.

Additional “quick” calls to the object in the confirmation strobe for detecting the object can be carried out when the object is detected in the strobe to capture the trajectory. The "fast" treatment to the object for examination the treatment interval to T _PA2 object smaller than the reference time interval to an object in the gate confirm capture trajectory T _PP allows: first, to significantly reduce the number of false confirmations gripper trajectory; secondly, to significantly speed up the process of detecting trajectories (the strobe for confirming the detection of an object in this case acts as a strobe for confirming the capture of a trajectory), which is especially important for performing tasks of detecting the trajectory of high-speed objects.

When accessing the object at time intervals T _POi , where i = 1, 2 is the number of the strobe confirming the detection of the object, i = 1 corresponds to T _PO1 , i = 2 corresponds to T _PO2 , the size of the capture gates become equal:

- in range:

- in angular coordinates:

From formulas (3) and (4) it follows that for sufficiently small values of T _ON1 and T _ON2 , small strobes for capturing and confirming the trajectories of high-speed objects are _also provided.

If it is supposed to accompany not the highest-speed objects, then a slightly longer interval of time for accessing the object in the detection confirmation strobe can be set. In this case, the number of trajectories formed by reflections from passive interference (false trajectories) decreases. The acceptable range when choosing the time interval for accessing the object in the strobe confirmation of the detection of the object T _ON and T _{ON 2} can be considered 0.1-0.5 s.

Thus, the claimed technical result is achieved.

The invention is illustrated by the following drawings.

Figure 1 - dependence of the average number of detected reflections from meteorological formations N _T with two consecutive calls to them relative to the total number of reflections N ₀ from the value of the time interval between two consecutive calls T _PO1 .

Figure 2 is a block diagram of a surveillance radar that implements the inventive method.

Survey radar station that implements the inventive method, contains (figure 2) an antenna 1, a beam control device 2, the output of which is connected to the antenna 1, serially connected transmitter 3, antenna switch 4, receiver 5 and calculator 6, as well as synchronizer 7, with this signal input / output of the antenna 1 is connected to the input / output of the antenna switch 4, and its coordinate output is connected to the second input of the calculator 6, the four outputs of the synchronizer 7 are connected respectively to the input of the beam control device 2, the input of the transmitter 3, the second input of the receiver 5 and with the third input of the calculator 6 (Monzingo, R.A., Miller, T.U., Adaptive Antenna Arrays. - Introduction to Theory, translated from English. - Moscow: Radio and Communications, 1986, p. 19 )

The specified radar can be performed on the following functional elements.

Antenna 1 - PAR with two-dimensional electronic scanning in elevation and azimuth (Reference for radar. Edited by M. Skolnik, vol. 2. - M .: Sov. Radio, 1977, p.138).

Beam control device 2 is a digital computer that implements the well-known algorithm for calculating the distribution of the state of phase shifters in the headlamp fabric and forming a beam in a given direction by elevation (Radar Reference. Edited by M. Skolnik, vol. 2. - M .: Sov. Radio 1977, p. 141-143).

Transmitter 3 - a multi-stage pulse transmitter on a klystron (A.M. Pedak et al. Guide to the basics of radar technology. Edited by V.V. Druzhinin. Military Publishing House, 1967, p. 278-279, Fig. 7.2).

Antenna switch 4 - balanced antenna switch based on a circulator (A.M. Pedak et al. Guide to the basics of radar technology. Edited by V.V. Druzhinin. Military publishing house, 1967, p.166-168).

Receiver 5 - superheterodyne receiver (A.M. Pedak et al. Guide to the basics of radar technology. Edited by V.V. Druzhinin. Military Publishing House, 1967, p.343-344, Fig. 8.1).

Calculator 6 is a digital calculator. In calculator 6, a well-known method for detecting the trajectory of an object is implemented (S. Kuzmin. Fundamentals of the theory of digital processing of radar information. M: Sov. Radio, 1974, p. 285-287).

Synchronizer 7 - is made on the basis of a master oscillator and a chain of frequency dividers connected in series (Radar devices (theory and construction principles). Edited by V.V. Grigorin-Ryabov. M.: Sov. Radio, 1970, p. 602- 603).

Consider the work of the surveillance radar (figure 2), which implements the inventive method with the detection criteria of the trajectory of the object 2/2 + 1/2.

The speed of the object is assumed to be unknown, i.e. an object can be either non-high-speed or high-speed.

Assuming that the average number of false paths generated by reflections from passive interference is acceptable at the level of 5% of the total number of reflections in a regular review, the minimum time interval for accessing the object in the object confirmation confirmation _strobe T _PO1 based on the dependence of Fig. 1 will be set to 0.1 s. We will also accept the admissible level of the confirmed trajectories and the corresponding value of the time interval for accessing the object in the strobe confirming the detection of the object T _PO2 . These intervals provide both relatively small capture gates and capture confirmation gates when detecting high-speed object trajectories.

On command from the synchronizer 7 in the beam control device 2, the distribution of the state of the phase shifters in the canvas of the antenna 1 is calculated and the beam of the antenna 1 is set in the specified direction of the regular viewing zone. Formed in the transmitter 3 high-frequency sounding signal through the antenna switch 4 is supplied to the antenna and emitted. The reflected signal is received by the antenna 1, through the antenna switch 4 it enters the receiver 5, where it is converted to a video frequency, and then fed to the computer 6, where operations are performed to process the incoming information when an object trajectory is detected.

For each reflected signal detected during a regular review, the boundaries of the object detection confirmation strobe (in accordance with formulas (3) and (4)) with the center at the point with the coordinates of the detected reflected signal during regular inspection of the viewing area are calculated. After the time interval for accessing the object T _{ON1, the} specified gate is inspected. For this, signals proportional to the positions of the beam within the calculated boundaries of the strobe, from the output of the calculator 6 are supplied to the control device of the beam 2, and the antenna beam is sequentially set to these positions. According to the commands of the synchronizer 7 supplied to the transmitter 3, sounding signals are emitted. The reflected signals are received by the antenna 1, fed to the receiver 5 and then to the computer 6.

In the calculator 6 analyzes the contents of the strobe confirmation of the detection of the object. If the reflected signal detected during a regular review is also detected in the strobe confirming the detection of the object, then it is considered to belong to the object and then the object's path is detected. Otherwise, it is assumed that the reflected signal belongs to passive interference, and the detection of the trajectory stops.

If the position of the object in space from the moment of its detection during regular viewing, according to estimates of its coordinates in the confirmation confirmation strobe of the object, has not changed, then the object is considered not high-speed and then a strobe to capture its trajectory is assigned in a known manner. The trajectory capture gate is inspected after a time interval _TZ . The two measurements of the coordinates of the object obtained in this way determine its speed and direction of movement. Extrapolation of the position of the object through the time interval of access to the object T _PZ . The position of the boundaries of the capture confirmation gate is calculated and the gate is inspected. If an object is not found in the strobe confirmation gate, another extrapolation of the position of the object is carried out. The position of the boundaries of the capture confirmation strobe is calculated after the time interval of access to the object T _PZ and the strobe is inspected. If the reflected signals are not detected in both capture confirmation gates, the trajectory capture is considered not confirmed, the trajectory is not detected and the trajectory detection process stops (the criterion for detecting the trajectory 2/2 + 1/2 is not fulfilled). If a reflected signal is detected in at least one of the capture confirmation gates, then the capture of the trajectory is considered confirmed, and the trajectory is detected (the criterion for detecting the trajectory 2/2 + 1/2 is fulfilled).

If the position of the object in the strobe for confirming the detection of the object differs from its position during regular review, then the object is considered high-speed and the speed and direction of its movement are determined from the two measurements obtained. Those. in the case of a high-speed object, the object detection confirmation gate acts as a trajectory capture gate.

Further, as in the high speed is not an object, its position is carried out through extrapolation time interval treatment to an object in the gate confirmation T _PP capture and detection process continues similarly to the trajectory for the object is not high.

After detecting the reflected signal in the capture strobe, an additional call to the object can be made in the object confirmation confirmation strobe. In this case, its boundaries are calculated, and the strobe is inspected through the time interval for accessing the object T _PO2 , less than the time interval for accessing the object in the strobe confirming the capture of the trajectory T _PZ (for example, T _PO2 = 0.1 s). If a reflected signal is detected in the object detection confirmation strobe, then it is considered reflected from the object and the path capture is considered confirmed, and the detected path (the detection criteria for the 2/2 + 1/2 path is fulfilled), otherwise it is considered a reflection from passive interference. In the latter case, the detection of the trajectory continues according to the known method, i.e. another n attempts are made to detect the object in the trap confirmation gates. If a reflected signal is detected in at least one of these gates, then the capture of the path is considered confirmed, and the path is detected (the criterion for detecting the path 2/2 + 1/2 is fulfilled), otherwise the path is considered not detected (criterion for detecting the path 2 / 2 + 1/2 failed).

Thus, in the survey radar that implements the inventive method, a reduction in the number of false trajectories generated by reflections from passive interference is achieved, and when detecting the trajectories of high-speed objects, in addition, a significant reduction in the size of the trapping gates is made and the decision making time for detecting the trajectory is reduced.

Claims (4)

1. A method of detecting the trajectory of an object comprising radiation of the probe signal, receiving a reflected signal, the detection of the reflected signal during the regular inspection of the radar coverage area, calculating strobe boundaries capture trajectory inspection gate capture trajectory after a time interval T to the object reference and _of detection of a reflected signal estimate speed and direction of the object based on the calculation performed boundaries ratings and viewing after a time interval T to the object handling _pz sequentially first, sec th, ..., nth trajectory acquisition confirmation gates, making a decision on detecting the object’s trajectory if a reflected signal detected during regular review of the radar coverage area is also detected in the trajectory acquisition strobe and in one of the n trajectory capture confirmation gates, which differs the fact that after detecting the reflected signal during regular inspection of the radar _{field of view} , the boundaries of the object detection confirmation strobe are additionally calculated, they are inspected through the time interval for accessing the object _T1 less than the interval al time treatment to an object in the gate capture trajectory T _s, wherein if a gate acknowledgment detection object detected reflected signal and the object coordinates corresponding to the detected signal, changed, assess speed and direction of motion of the object, calculating on the basis of conducted boundaries assessments and inspection after a time interval T to the object handling _pz sequentially first, second, ..., n-th strobe confirm capture path, deciding the detection object trajectory when reflected from drove detected at regular review radar coverage area is detected in the object detection strobe confirmation and one of the n strobe confirm capture path; if the reflected signal is detected in the object detection confirmation strobe, but the object coordinates corresponding to the detected signal have not changed, then the boundaries of the trajectory capture strobe are calculated, the trajectory capture strobe is examined after the time interval for accessing the object _T3 and the reflected signal is detected in it, and the speed estimate and object direction, the calculation performed on the basis of estimates and border inspection after a time interval T to the object handling _pz sequentially first, second, ..., n-th ACK strobes REPRESENTATIONS capture path, deciding the detection path object if the reflected signal detected at the regular review radar coverage area, also detected in the capture path gate and one of the n strobe confirm capture path; if the reflected signal is not detected in the object confirmation confirmation strobe, then the object trajectory is considered not detected and its detection is terminated, and / or after detection of the reflected signal to the gate of the capture path further comprises calculating boundary strobe confirm detection object, examine it through the object interval treatment to T _PA2, smaller than the interval time of circulation to an object in the gate confirm capture trajectory T _pz, wherein if a reflection signal is detected in the object detection confirmation strobe, then the trajectory is considered to be detected, if the reflected signal in the object detection confirmation strobe is not detected, then an estimate is made the speed and direction of movement of the object, the calculation based on the estimates of the boundaries and inspection through the time interval of accessing the object T _{poses the} first, second, ..., nth gates of confirmation of the trajectory capture, the decision to detect the trajectory of the object, if the reflected signal is detected during a regular review of the radar field of view, it was also found in the trajectory capture gate and in one of the n trajectory capture confirmation gates. 2. The method according to claim 1, characterized in that the time intervals for accessing the object in the strobe confirm detection of the object T ₁ , T ₂ select based on the allowable average number of false trajectories generated by reflections from passive interference. 3. The method according to claim 1, characterized in that the time intervals for accessing the object T ₁ , T ₂ are selected in the range of 0.1-0.5 s. 4. The method according to claim 1, characterized in that the boundaries of the strobe confirm the detection of an object is calculated in accordance with the formulas: range: ΔR = ± (V _{R max} T _i + 3σ _R ), where V _{R max} - the maximum radial velocity of the object; σ _R is the standard deviation of the measurement of the distance R to the object; i = 1, 2 - the strobe number of the confirmation of detection of the object, i = 1 corresponds to T _by1 , i = 2 corresponds to T by ₂ ; in angular coordinates:

where α is the coordinate of the object in elevation or azimuth; σ _α is the standard deviation of the measurement of the angular coordinate of the object α; V _{α max} - the maximum speed of the object in the angular coordinate α.

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