Adaptive clutter suppression moving-target signal processing technology and realizing method
An adaptive clutter and signal processing technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as inability to obtain clutter and interference performance, achieve high practical application value, simple engineering implementation, and good real-time performance
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[0014] The present invention completes clutter suppression and moving target detection based on cancellation technology, FIR narrowband filter bank and constant false alarm detection. The specific implementation steps are as follows. figure 1 :
[0015] According to the noise level and moving target processing performance, the pulse pressure signal is dynamically matched;
[0016] 1. Cancellation processing;
[0017] 2. After FIR narrowband filter bank processing;
[0018] 3. Perform distance unit logarithmic constant false alarm processing on each channel signal;
[0019] 4. By monitoring and tracking the given speed of the moving target, calculate the FIR filter corresponding to the speed, and after the constant false alarm is processed, the large output is selected together with the signal in ④.
[0020] The principle of designing the FIR filter bank in use is: the main lobe of each narrowband filter should be evenly distributed from zero to the signal repetition frequency (0-Fr), so ...
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