Target track-before-detect (TBD) method based on multi-frame coherent integration
A technology of coherent accumulation and forward tracking, which is applied in measuring devices, radio wave measurement systems, radio wave reflection/re-radiation, etc., can solve the problems of large data processing volume and low detection efficiency
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[0063] The present invention mainly adopts the method of simulation experiment to verify, and all steps and conclusions are verified correctly on MATLAB7.0. The specific implementation steps are as follows:
[0064] Step 1. Multi-frame coherent accumulation TBD data initialization
[0065] Initialization system parameters include: radar transmission pulse repetition period T = 1ms; radar distance resolution δ r =20m; the number of radar range sampling points r=100; the minimum radial velocity V of the target min =250m / s and the maximum radial velocity V max =450m / s(V min and V max From the prior information of the target); the number of data frames for coherent processing K=3; the number of azimuths N=20 of the spatial division of each cycle of radar scanning, and the number of pulses M=16 emitted by each azimuth;
[0066] Step 2. Multi-frame echo data is spliced in the slow time dimension
[0067] Randomly take 3 frames of echo data continuously received by the radar ...
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