In order to achieve low probability detection communication,this paper proposes a design scheme for low probability detection signals.The scheme combines symbol spreading and double layers multiple parameters weighted-type fractional Fourier transform to generate a signal with strong covertness.Simulation experiments demonstrate that the covert signal generated by the proposed scheme has strong covertness in both time domain,frequency domain and statistical do-main,and also has good reliability at low signal-to-noise ratio.
关键词
隐蔽通信/双层多参数加权分数傅里叶变换/低概率检测
Key words
covert communication/DL-MPWFRFT/low probability of detection
维普
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