Constant false alarm rate detection method adaptive to environmental changes
A constant false alarm detection and environmental change technology, applied in the field of constant false alarm detection, can solve the problems of detection performance degradation, performance degradation, poor detection performance, false alarm performance, etc.
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[0035] The technical solutions of the present invention will be further explained below through specific embodiments in conjunction with the drawings.
[0036] Such as figure 1 As shown, the present invention provides a constant false alarm detection method that is adaptive to environmental changes, and the specific steps are as follows:
[0037] Initialize the interference memory;
[0038] S1: Copy the common Q points of the first cycle FFT data modulus M times and store them in M interference memories of length Q; Q point is the number of FFT transformation points, which is a power of 2; in this design The number of clutter RAM is 5 by default, that is, M=5, Q=256; the interference signal stored in the interference memory includes clutter and noise;
[0039] S2: Use the spectrum information of the current period data and the interference spectrum information of the previous M periods to estimate the interference spectrum of the current period data; the estimation process is as f...
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