FPGA-based two-dimensional ordered statistical constant false alarm detector implementation method
An implementation method and detector technology, applied in the direction of instruments, measuring devices, radio wave measurement systems, etc., can solve the problems affecting the real-time performance of target detection and detection, increasing the detection delay, etc.
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[0070] This example includes the following steps:
[0071] Step 1: Set the shift register bank according to the size of the two-dimensional matrix.
[0072] It is assumed that after the radar echo data passes through MTI and MTD, the size of the two-dimensional power matrix obtained is 30×512. It represents the Doppler dimension unit M=30, and the distance dimension unit L=512.
[0073] Set the distance dimension sliding window length to X=21, the Doppler dimension sliding window length Y=21, the left, right, upper and lower reference units of the reference units are all 8, the number of protection units is 2, and the detection unit is in the middle. False alarm probability is 10e-4, threshold factor coefficient α r = α d = 10.8.
[0074] Program in Verilog language, and use the for statement to call the array to form a register group. The number of register groups is 21, the number of registers in each register group is 30, and the register data bit width is set to 16 bi...
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