Coherent-processing multi-target tracking method of security monitoring radar system

A multi-target tracking and radar system technology, applied in the multi-target tracking field of security monitoring radar system, can solve problems such as inability to accurately obtain target distance and speed information, inability to solve multi-target tracking problems, inability to obtain corresponding relationships, etc. Low cost, simplicity and ease of implementation, the effect of reducing complexity

Inactive Publication Date: 2015-11-04
WUHU SENSOR TECH CO LTD
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Problems solved by technology

[0016] When there are n targets in front of the radar, the echo signal is the superposition of the echo signals of multiple targets, n spectrum peaks can be obtained from the spectrum analysis of the rising edge frequency band, and n spectrum peaks can also be obtained from the spectrum analysis o

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  • Coherent-processing multi-target tracking method of security monitoring radar system
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  • Coherent-processing multi-target tracking method of security monitoring radar system

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Embodiment Construction

[0040] A coherent processing security monitoring radar multi-target tracking method provided by the present invention will be described below with reference to the accompanying drawings and specific embodiments.

[0041] The security radar system consists of four parts: antenna, front end, signal processing unit, and display and control computer. The block diagram of the system is as follows: figure 2 shown.

[0042] A multi-target tracking method of a security monitoring radar system with coherent processing, the security radar system includes an antenna, a front end, a signal processing unit and a display and control computer, and the specific steps are as follows:

[0043] Step 1. Use the same clock to synchronize the modulation signal of the intermediate frequency source at the front end and the timing control signal of the signal processing unit to make the system coherent;

[0044] Step 2. The modulated signal generates a sawtooth linear FM signal waveform, and the fre...

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Abstract

The invention discloses a coherent-processing multi-target tracking method of a security monitoring radar system. Spectrum analysis is carried out on target echo signals, different spectral lines include distance information of different targets, FFT processing is carried out on spectral lines of the same distance unit in different repetition periods to obtain target Doppler information, namely speed information of the target, and tracks of the multiple targets are tracked at the same time in a target association algorithm. The method can effectively solve the problem that multiple targets tend to be pair in error, and reduce the complexity of the algorithm of a signal processing unit.

Description

technical field [0001] The invention belongs to the field of signal processing, in particular to a multi-target tracking method of a coherent processing security monitoring radar system. Background technique [0002] With the development of radar electronic technology, the application of radar in security monitoring system is more and more extensive. Radar not only needs to monitor and alarm a single target, but also needs to track multiple dangerous targets in the area and display the target trajectory in order to quickly and accurately control the dangerous targets. Traditional security monitoring radars generally use microwave-to-radio radar and LFMCW (Linear Frequency Modulated Continuous Wave) radar. Microwave through-radiation radar adopts two radars placed opposite to each other, and an electronic wall is formed between the two radars. When the target passes through the electronic wall, the radar system will send out an alarm message. Microwave through-radiation rad...

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Application Information

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IPC IPC(8): G01S13/72G01S13/58
CPCG01S13/726G01S13/584
Inventor 秦屹柯常勇张恒
Owner WUHU SENSOR TECH CO LTD
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