基于Costas-DPSK编码的水下探测通信一体化波形

A waveform for underwater detection and communication integration based on Costas-DPSK

面对未来无人水下航行器(UUV)等设备探测通信一体化需求,本文提出一种基于Costas序列频率调制和差分相移键控(Frequency modulation of Costas Sequence and Differential Phase Shift Keying,Costas-DPSK)的水下探测通信一体化波形,并给出后续基于双曲调频信号和单频连续波信号(Hyperbolic Frequency Modulation Wave and Continue Wave, HFM+CW)导引信号设计和信息处理方案。该信号利用Costas跳频调制保证了波形的探测能力,结合DPSK调制通信信息序列。仿真实验结果表明,该信号同时具备不输于线性调频信号(Line Frequency Modulation,LFM)信号的目标探测能力以及DPSK调制的通信能力,兼顾了水下探测和通信功能。

Aiming at the demand for detection and communication integration of UUV and other underwater devices in the future,an underwater integrated detection and communication signal based on frequency modulation of Costas sequence and differential phase shift keying(Costas-DPSK)is designed,and its guidance signal format based on hyperbolic frequency modulation wave and continue wave(HFM+CW)and information processing method are proposed.The detection capability is ensured through Costas frequency hopping,and the communication information is modulated by DPSK.The simulation results show that the proposed signal has both target detection capabilities that are not inferior to LFM,and communication capabilities of DPSK,taking into account both detection an communication functions.