Sea surface small target feature detection method based on time-frequency domain depth network
A deep network, feature detection technology, applied in radio wave measurement systems, instruments, etc., to achieve the effect of improving the detection probability
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[0045] The present invention will be further described in detail below with reference to the accompanying drawings.
[0046] The present invention proposes a method of detecting a small target characteristic detection based on time-frequency domain depth network, such as figure 1 As shown, specifically includes the following steps:
[0047] Step 1: Get the P observation vector around the unit to be detected, Z p , p = 1, 2, ..., p; establish a three-yuan hypothesis test problem h 0 , H 1+ , H 1- Fine refine targets fall in different characteristics inside and outside the marginoid band.
[0048] Suppose the radar receives a continuous N pulse in a distance unit, constitutes an observation vector z = [z (1), z (2), ..., z (n)] T , Called the Cell Under Test, Cut. At the same time, obtain the observation vector of the P reference unit around the CUT p , p = 1, 2, ..., p.
[0049] In order to further refine the target to fall in different characteristics inside and outside the margin...
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