Simulation of FSK Signal Frequency Detection Based on Differential Evolution
In order to solve the problem of fast detection of FSK signal frequency in communication signal detection,a fast frequency detection method for FSK signal is proposed based on the multiple differential evolution search. In this method,the amplitude spectrum of the signal is taken as the initial objective function of differential evolution,whose maximum value is searched through multiple differential evolutions with the update of objective function,to obtain the optimal extreme coordinate vector. Aiming at the corresponding objective function value vector according to the optimal extreme coordinate vector,a differential ratio is defined to determine the effective position of spectral peaks, ultimately to complete the frequency detection of the FSK signal. Simulation experiments have verified the effectiveness and feasibility of the method presented in this paper.
Differential EvolutionCommunication detectionFrequency shift keying (FSK) signal
万方数据
维普
