A method for manual intervention of radar tracks

Abstract

The present invention relates to a method for manual intervention of a track, comprising the following steps: sending the batch number of the target track to be concerned to the data processing software; selecting a spatial position and sending it to the data processing, which can be implemented through a radar terminal; while sending the spatial position, sending a track correction instruction to the data processing; after receiving the information of the above steps, the data processing software associates the target track to be concerned with the received position information and guides the target track to the specified position; during the above processing, the data processing software still performs the association between the target track and the primary point tracks reported by the signal processing in the normal processing manner. This method is more applicable when focusing on key targets in a radar system with a lower data rate. After the target track is incorrectly associated with clutter, it is corrected to ensure the continuity of the air situation information.

Description

Technical Field

[0001] The present invention belongs to the technical field of radar track acquisition, and relates to a new method for radar track acquisition; through this method, misassociated tracks can be corrected to ensure the correctness and continuity of air situation information. Background Art

[0002] At present, most radars use software to automatically establish tracks for target track acquisition. Correlation processing is performed on the primary echoes detected by signal processing to achieve the establishment and maintenance of target tracks. This processing is generally implemented in the radar data processing unit. Automatic track acquisition can greatly improve the radar track processing ability and meet the requirement of simultaneously tracking multiple targets. To ensure continuous tracking of a target during its maneuver, the relevant algorithms for data processing must meet the correlation ability when parameters such as the target's distance, angle, and speed change suddenly. However, under certain specific conditions (for example, during a certain detection, the true target echo is not detected, while clutter echoes appear near the target), target track correlation may be incorrect. For example, it may be associated with clutter echoes deviated from the target position, resulting in the output track deviating from the true target position, and in severe cases, the track may be interrupted, showing a track break phenomenon. In subsequent detections, the true target may re - establish a track, but after a track break, the air situation information reported by the radar will be interrupted, which interferes with the superior command center's judgment of the air situation.

[0003] Currently, the handling of the above - mentioned problems mainly relies on designing more optimized track correlation criteria in the data processing software to ensure the correct association of targets. For example, a larger track correlation gate (prior art) or a multi - hypothesis (prior art) processing method is used. When the target track is pulled off by false alarm echoes such as clutter, it can automatically establish an association with the true target in the next cycle to achieve automatic correction. However, the above software designs all have certain limitations. Using a larger track correlation gate will cause the target to be more easily pulled off by false alarm echoes, resulting in a decrease in measurement accuracy; when using the multi - hypothesis processing, the software is more complex and the computational amount increases exponentially. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] To avoid the problem in the prior art that automatic association may associate with clutter echoes, resulting in the track deviating from the true target position, and in severe cases, the track may be interrupted or broken, the present invention proposes a method for manual intervention in radar tracks.

[0006] Technical Solution

[0007] A method for manual intervention in radar tracks, characterized by the following steps:

[0008] Step 1: Send the batch numbers of the target tracks to be concerned to the data processing software;

[0009] Step 2: Select a spatial position and send it for data processing, and this sending process can be implemented through a radar terminal;

[0010] Step 3: While sending the spatial position, send a track correction instruction to the data processing;

[0011] Step 4: After the data processing software receives the information in the above Steps 1 to 3, it associates the target track of interest with the received position information and guides the target track to the specified position;

[0012] Step 5: During the above processing, when the data processing software associates the target track with the primary plot reported by the signal processing, it still proceeds in the normal processing manner.

[0013] A further technical solution of the present invention: The sending process in Step 1 can be implemented through a radar terminal, but is not limited to this method.

[0014] A further technical solution of the present invention: Step 2 adopts manual input of position parameters or selection through a mouse on the terminal interface, but is not limited to this method.

[0015] A further technical solution of the present invention: The sending process in Step 3 can be implemented through a radar terminal, but is not limited to this method.

[0016] Beneficial effects

[0017] The present invention proposes a method for manual track intervention for a radar system with automatic track acquisition. When the software's automatic track association goes wrong, it is corrected through the operator's manual operation. This method is more applicable when focusing on key targets in a radar system with a lower data rate. Compared with the prior art, it has the following advantages:

[0018] 1. Realize track correction without changing the existing track association criteria;

[0019] 2. The software algorithm is simple, with a small amount of computation, and is easy to implement on the existing data processing platform. Specific embodiments

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] When the radar is in the automatic track acquisition mode, the operator clicks on the target track that needs attention with the mouse and sends the track batch number to the data processing unit. When the target track is wrongly associated with false alarm points such as clutter points, or when the target track deviates from the true position for other reasons, the operator can judge the true position of the target based on the subsequent detected primary echoes. At this time, the operator clicks on the true position of the target on the terminal interface with the mouse, and at the same time, through shortcut keys or other means, sends the position information clicked by the mouse and the track correction command to the data processing unit. The data processing unit forces the target track to be guided to the specified position, thereby realizing the correction of the target track.

[0022] The specific steps are as follows:

[0023] 1) Send the batch number of the target track that needs attention (the track has been established by the data processing unit) to the data processing software. This sending process can be achieved through the radar terminal, but is not limited to this method;

[0024] 2) Select a spatial position and send it to the data processing unit. This sending process can be achieved through the radar terminal, such as manually inputting position parameters or selecting through the mouse on the terminal interface, but is not limited to this method;

[0025] 3) While sending the spatial position, send a track correction instruction to the data processing unit. This sending process can be achieved through the radar terminal, but is not limited to this method;

[0026] 4) After receiving the information in the above steps 1 to 3, the data processing software associates the target track that needs attention with the received position information and guides the target track to the specified position;

[0027] 5) During the above processing, the data processing software still processes the association between the target track and the primary echoes reported by the signal processing in the normal way.

[0028] As mentioned above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A method for manual intervention of radar tracks, characterized in that The steps are as follows: Step 1: When the radar is in automatic track acquisition, the batch numbers of the target tracks to be concerned are sent to the data processing software; among them, when sending the batch numbers of the target tracks, the tracks have been established in the data processing. Step 2: Select a spatial position and send it to the data processing, and this sending process can be achieved through the radar terminal; the spatial position is selected by the operator clicking on the true position of the target on the terminal interface when the target track is wrongly associated with the false alarm point or the target track deviates from the true position due to other reasons, and the operator can judge the true position of the target based on the subsequently detected primary echo. Step 3: While sending the spatial position, send a track correction instruction to the data processing. Step 4: After receiving the information in the above Steps 1 to 3, the data processing software forcibly associates the target track to be concerned with the received position information and guides the target track to the specified position. Step 5: During the above processing, the data processing software still processes the association between the target track and the primary echo reported by the signal processing in the normal way.

2. A manual intervention method for radar tracks according to claim 1, characterized in that The sending process in Step 1 can be achieved through the radar terminal.

3. A method for manually intervening in radar tracks according to claim 1, characterized in that Step 2 adopts manual input of position parameters or selection through the mouse on the terminal interface.

4. A method for manually intervening in a radar track according to claim 1, characterized in that The sending process in Step 3 can be achieved through the radar terminal.