某引信通信2FSK调制解调方法

某电子时间引信的装定过程本质上是数字信息通信过程,信号的调制和解调是其重要环节。在分析二进制频移键控(2FSK)的原理基础上,研究了其调制及相干解调方法,利用Matlab对该调制、解调过程进行了仿真分析,得出在高斯白噪声条件下相干解调方法的误码率。仿真结果表明,所要调制的基带信号波形与所得解调信号波形一致,验证了调制解调计算方法的正确性。

Analysis on 2 FSK Modulation and Demodulation Method in Fuze Communication

New electronic time fuze setting is essentially a digital communication process which involves modulation and demodulation of information.On the basis of analysis on theoretical principle of Binary Fre-quency Shift Keying （2FSK）,the essay gives insight into the modulation and coherent demodulation meth-od,and simulations are undertaken aided by Matlab program.Error rate of coherent demodulation method is obtained in the presence of white Gaussian noise.Simulation results show that the baseband signal wave-form is identical to the demodulation signal waveform,which verifies the validity of the modulation and de-modulation method.