基于串行干扰抵消的多雷达组网系统设计

Design of Multi-radar Networking System Based on Serial Interference Cancellation

在雷达设备上集成通信功能是当前雷达技术发展的一个重要方向。基于雷达硬件平台,在分配的时隙内采用发射端扩频编码、接收端串行干扰抵消的处理方法,实现同时对多路信号的接收解调。对此进行了理论分析和仿真验证,结果表明:采用串行干扰抵消方法能够有效对接收到的多路信噪比不同的信号进行解调,其性能远优于直接相关法对弱信号的解调能力,能够实现跨平台多雷达间数据的无线传输。

Integrating communication function on radar equipment is an important direction of current radar technology development.Based on the radar hardware platform,this paper adopts the processing method of spread spectrum coding at the transmitting terminal and serial interference cancellation at the receiving terminal in the allocated time slot to realize the simultaneous reception and demodulation of multipath signals.Theoretical analysis and simulation verification are carried out.The results show that the serial interference cancellation method can effectively demodulate the received signals with different signal-to-noise ratios,and its performance is far better than the demodulation ability of the direct correlation method for weak signals,which can realize the wireless transmission of cross-platform multi-radar data.