Ultralow-sidelobe pulse compression method
A technology of pulse compression and ultra-low sidelobe, applied to radio wave measurement systems, instruments, etc., can solve the problems of reducing radar detection distance resolution, reducing radar action distance, affecting distance resolution and signal detection capabilities, etc., to ensure Ultra-low sidelobe performance, reduce sidelobe, reduce the effect of target flicker
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[0037] The present invention will be further described below in conjunction with the accompanying drawings.
[0038] like figure 1 As shown, an ultra-low sidelobe pulse compression method specifically includes the following process:
[0039] Step 1. The transmitter designs a weighted window function w(t) according to the transmitted chirp signal s(t), and changes the transmitted signal to s(t)×w(t);
[0040] Step 2, according to the transmitted signal, design the corresponding pulse compression matched filter h(t) and sidelobe suppression filter w(t) at the receiving end, and the sidelobe suppression filter w(t) is based on the weighted window function w (t) design;
[0041] Step 3, calculate the pulse compression result y(t)=[s(t)×w(t)]*[ h(t)×w(t)];
[0042] Step 4. Cancel the weighted window function at the transmitter, and design an equivalent filter h at the receiver w (t), and calculate the equivalent filter h according to the frequency domain implementation method ...
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