基于曼彻斯特编码算法的单通道二次雷达信号重构方法

Secondary Surveillance Radar Replies Received in Single Channel Based on Manchester Decoding Algorithm

针对目前算法不能有效解决单通道信号混扰的问题,提出了基于曼彻斯特编码算法的单通道二次雷达信号重构方法。该方法首先将接收到的混扰信号进行采样重构,得到新的混扰信号矩阵;然后利用MDA算法对信号进行估计与分选;最后将得到的分选信号矩阵进行重构、解码,得到相应应答信号。仿真结果说明:改进方法对单通道的混扰信号可以进行有效分选。

To solve the problem that MDA can not separate garbled secondary surveillance radar replies in single channel,a new method based on Manchester decoding algorithm was proposed in this paper.Firstly,the garbled signal was resampled and reshaped to get a new garbled signal matrix.Secondly,the method separated garbled signals in single channel with MDA algorithm.Lastly,through reshaping signal data,the original signals could be got by decoding.Simulation results demonstrated the effectiveness of the proposed algorithm in separating garbled single channel signals.