A method, system, device, and computer medium for counter reconnaissance tracking of spoofed emissions

Abstract

This invention discloses a counter-reconnaissance tracking method, system, device, and computer medium using deception-based transmission, comprising the following steps: receiving reflected signals from targets within the reconnaissance area; transmitting pulse signals in groups, wherein the parameters of the second and subsequent groups of pulse signals are the same as those of the first group. This invention effectively manages and controls the tracking beam by transmitting deception beams, thereby deceiving enemy reconnaissance aircraft and achieving high-data-rate tracking of targets.

Description

Technical Field

[0001] This invention relates to the field of radar target detection, and more specifically to a counter-reconnaissance and tracking method for deceptive launches. Background Technology

[0002] In practical applications, radar often serves as the primary sensor for detecting and tracking various targets within an area. Therefore, ensuring the high efficiency of radar operation is a crucial consideration. Phased array radar possesses rapid spatial beam agility and flexible time and energy management capabilities, giving it unparalleled advantages over conventional mechanically scanned radar. Its unique track and scan (TAS) operating mode is based on the antenna beam agility. Therefore, to better leverage the TAS capability of phased array radar, effective control of the antenna beam is essential.

[0003] When a phased array radar tracks a target, in order to ensure that the position of the tracked target is updated in a short time and to ensure tracking reliability and accuracy, the tracking time interval needs to be shortened, which requires a higher tracking data rate. However, increasing the data rate also makes it easier for the other side to detect and interfere with the target. Summary of the Invention

[0004] To address the above problems, this invention proposes a deceptive launch counter-surveillance tracking method, comprising the following steps:

[0005] Receive reflected signals from targets within the reconnaissance area;

[0006] Pulse signals are transmitted in groups, and the signal parameters of the pulse signals in the second and subsequent groups are the same as those of the pulse signals in the first group.

[0007] Furthermore, the signal parameters include carrier frequency, pulse width, and pulse repetition period; the pulse signal of the first group includes N beams, and the carrier frequency, pulse width, and pulse repetition period of each beam are respectively... , and ;in, .

[0008] Furthermore, the tracking sampling interval time for each group of pulse signals is T, and the tracking data rate is 1 / T.

[0009] A counter-reconnaissance system for deception is also proposed. The system includes a signal acquisition module and a signal transmission module. The signal acquisition module is used to acquire the reflected signal of the target being detected. The signal transmission module is used to transmit jamming signals at set time intervals. The system acquires the reflected signal of the target in the detected area and transmits its own jamming signal based on any of the above methods.

[0010] A counter-reconnaissance device for deceiving launches was also proposed, including:

[0011] Memory, used to store computer programs;

[0012] A processor for executing a computer program to implement the steps of the anti-reconnaissance method for deception launch as described above.

[0013] A computer medium storing a computer program is also proposed, wherein the computer program is executed by a processor as a step in implementing the anti-reconnaissance method for deception transmission as described in any of the preceding claims.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By transmitting deception beams, the tracking beam can be effectively managed and controlled, thereby deceiving enemy reconnaissance aircraft and achieving high data rate tracking of targets. Attached Figure Description

[0016] Figure 1 This is a flowchart of the method of the present invention.

[0017] Figure 2 This is a schematic diagram of the transmission time of the first group of beams.

[0018] Figure 3 This is a schematic diagram comparing the signal parameters of the first group of beams.

[0019] Figure 4 This is a schematic diagram of the transmission time of the (m+1)th beam group.

[0020] Figure 5 This is a schematic diagram comparing the signal parameters of the (m+1)th beam group. Detailed Implementation

[0021] The following detailed description, in conjunction with the accompanying drawings, illustrates specific embodiments of a deception-based anti-reconnaissance and tracking method, system, device, and computer medium of the present invention. Example

[0022] Phased array radar operates in tracking mode, emitting pulse signals. If the emitted beam signal is identical each time, it can be detected by the enemy and targeted jamming can be implemented. This invention proposes a deceptive emission counter-reconnaissance tracking method. By emitting deceptive beams, it makes it difficult for the enemy to accurately detect the radar data rate, thus hindering precise jamming and achieving the goal of high data rate target tracking. Figure 1 This is a flowchart of this embodiment. (As shown...) Figure 1 As shown, the search method proposed in this embodiment specifically includes the following steps:

[0023] The radar detects a target, activates the tracking mode, transmits a pulse signal, and sets the tracking sampling interval to T with a tracking data rate of 1 / T.

[0024] The first group of N beams are transmitted sequentially, with the carrier frequency of beam 1 being [missing information]. The pulse width is The pulse repetition period is Beam 2 changes signal parameters, carrier frequency is The pulse width is The pulse repetition period is And so on, the carrier frequency of beam N is The pulse width is The pulse repetition period is The specific beam and its corresponding transmission time are as follows: Figure 2 As shown in the figure; a comparison diagram of signal carrier frequency, pulse width, and pulse repetition period among multiple beams is shown in the figure. Figure 3 As shown;

[0025] Continue transmitting the second group of N beams. Beam N+1 has the same signal parameters as beam 1, beam N+2 has the same signal parameters as beam 2, ..., beam 2N has the same signal parameters as beam N. The signal parameters include carrier frequency, pulse width, and pulse repetition period.

[0026] Repeat the above steps, that is, every N beams are transmitted, the cycle repeats once, meaning the (N+1)th beam has the same signal parameters as the 1st beam, the (N+2)th beam has the same signal parameters as the 2nd beam, ..., the (m-1)N+nth beam has the same signal parameters as the nth beam (m=1,2,..., n=1,2,3,...,N), until the user issues a stop tracking command, where m represents the number of beam groups transmitted, and n represents the number of beams in each group. The specific beams and their corresponding transmission times are as follows: Figure 4 As shown in the figure; a comparison diagram of signal carrier frequency, pulse width, and pulse repetition period among multiple beams is shown in the figure. Figure 5 As shown. Example

[0027] This embodiment provides a counter-reconnaissance system using deception. The system includes a signal acquisition module and a signal transmission module. The signal acquisition module is used to acquire the reflected signal of the target being detected; the signal transmission module is used to transmit jamming signals at set time intervals. The system acquires the reflected signal of the target and transmits its own jamming signals based on the method of Embodiment 1. Example

[0028] This embodiment provides a counter-reconnaissance device for deception-based launches, including:

[0029] Memory, used to store computer programs;

[0030] A processor is used to implement the steps of the anti-reconnaissance method for deception launch as described in Embodiment 1 when executing a computer program. Example

[0031] This embodiment provides a computer medium on which a computer program is stored. The computer program is executed by a processor to implement the anti-reconnaissance method for deception transmission as described in Embodiment 1 above.

[0032] When a phased array radar tracks targets using the method described in this invention, once a certain beam n is detected by the enemy, the signal form is analyzed, and beam n and beams N+n, 2N+n, ... are considered as a group of tracking beams. Thus, the tracking sampling interval time is NT, and the tracking data rate is 1 / NT. We call the beam (m-1)N+n (m=1,2..., n=1,2,3...) the deception beam. Under this condition, jamming will only interfere with the signal of beam (m-1)N+1 (m=1,2...), while other beams can still continue to work, and the actual tracking data rate is 1 / T, thereby achieving high data rate tracking against the target.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of counter-reconnaissance tracking of spoofed emissions, characterized by, The method comprises the following steps: receiving the reflection signal of the target in the surveyed area; The pulse signals are transmitted in groups, the signal parameters of the pulse signals of the second group and subsequent groups are the same as those of the pulse signals of the first group; the signal parameters include carrier frequency, pulse width and pulse repetition period; the pulse signals of the first group include N beams, the carrier frequency, pulse width and pulse repetition period of each beam are respectively , and ; wherein, ; the tracking sampling interval time of the pulse signals of each group is T, and the tracking data rate is 1 / T.

2. An anti-reconnaissance system that counterfeits emissions, characterized in that, The system comprises a signal acquisition module and a signal transmission module, the signal acquisition module is used for acquiring the reflection signal of the target, and the signal transmission module is used for transmitting the interference signal according to the set time interval, and the system acquires the reflection signal of the target in the surveyed area and transmits the interference signal based on the method in claim 1.

3. An anti-reconnaissance device for spoofing emissions, characterized in that, comprise: a memory for storing a computer program; a processor for executing the computer program to realize the steps of the anti-survey method of the cheating transmission in claim 1.

4. A computer medium, characterized by The computer program is stored on the computer medium, and the computer program is executed by the processor to realize the steps of the anti-survey method of the cheating transmission in claim 1.

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