Space diversity based authorization user signal detecting method
A technology of authorization signal and detection method, which is applied in the direction of transmission monitoring, electrical components, transmission system, etc., can solve the problems of detection performance degradation and detection capability limitation, so as to improve performance, meet the requirements of detection performance, reduce multipath and The effect of the fading effect
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[0025] The authorization signal detection method based on spatial diversity in the present invention combines distributed detection with centralized decision-making. First, each sensing terminal in the sensing sub-area performs distributed sampling on the authorization signal, and then independently processes the sampled signal. Finally, the The access point collects the processing results of each sensing terminal and executes a decision to determine whether the authorization signal occurs. The method includes the following five processes and is performed in the order described:
[0026] 1) Periodic sampling process: each sensing terminal in the sensing sub-area independently periodically samples the authorization signal,
[0027] 2) Wavelet transform processing process: Each sensing terminal uses wavelet transformer to perform multi-scale wavelet transform on the sampling sequence, and sets different threshold values at each scale to judge the results after wavelet transform...
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