Waveform Correlation Analysis and Parameter Selection of MSK-LFM Integrated Signals
Based on the optimal reception criterion of binary digital signal,the correlation of waveform corresponding to different symbols of MSK-LFM radar communication integrated sig-nals is analyzed.The expression of waveform correlation coefficient is obtained using fresnel function.The relationships between the correlation coefficient and the initial frequency of LFM signal,the modulation frequency of LFM signal and the symbol modulation rate in the pulse are obtained through numerical simulation.The simulation model of MSK-LFM orthogonal modula-tion and demodulation is constructed for verification.The results show that the bit error rate can be reduced by increasing the initial frequency and the modulation frequency or reducing the modulation rate.When the initial frequency is much larger than the code modulation rate within the pulse,the different code waveforms can be considered as orthogonal.
radar communication integrationMinimum Frequency Shift Keying(MSK)Linear Frequency Modulation(LFM)waveform correlation
万方数据
维普
