A moving target detection method using time-delayed frft modulus difference
A technology of moving target detection and detection statistics, applied in the direction of using re-radiation, measurement device, radio wave measurement system, etc., can solve problems such as limited application, and achieve the effect of good real-time performance, easy implementation and wide application range
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings. With reference to the accompanying drawings in the description, the specific implementation of the present invention is divided into the following steps:
[0021] (1) After the signal returned from the radar antenna is amplified and mixed, it is sent to the computing device 1 to select echo data s(n) and delay data s(n-m).
[0022] (2) The computing device 2 receives the echo data s(n) from the computing device 1, completes FRFT, and obtains its modulus |F[s(n)]|.
[0023] (3) The calculation device 3 receives the delay data s(n-m) from the calculation device 1, completes FRFT, and calculates its modulus |F[s(n-m)]|.
[0024] (4) The calculation device 4 receives the output results of the calculation devices 2 and 3, and completes the operation |F[s(n)]|-|F[s(n-m)]|.
[0025] (5) The calculation device 5 receives the output data of the calculation device 4 an...
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