Signal Detection and Parameter Estimation of Hybrid Hopping Spread Spectrum Signal

Hybrid hopping spread spectrum signal has strong anti-interception and anti-interference abilities, and has made great progress in the field of covert communication and civil communication in recent years. In order to realize the “blind” detection and parameter estimation of the hybrid hopping spread spectrum signal under the condition of a low signal-to-noise ratio( SNR ), a detection method based on wavelet packet transform-energy detection method is proposed, and the narrow time domain-cyclic spectrum algorithm is further studied to estimate the parameters of the hybrid hopping spread spectrum signal, which can realize the effective detection and parameter estimation of the hopping spread spectrum signal.