基于K-means聚类的二次雷达信号解三重交织技术

New Separating Overlapped Algorithm for SSR Signals

在对二次雷达信号进行接收时,会遇到多个用户的信号交叠在一起的情况,从而无法对信号进行解码。先对交织模型进行建模,然后提出一种单通道解交织方法,给出信号处理流程与FPGA逻辑设计方案,最后采用HDL语言完成了所有功能模块的设计,开展仿真验证和上板调试。实验结果表明,该算法能有效对三重交织信号进行解码。

As the increasing of the aircraft,there will be overlapping in Secondary Surveillance Radar(SSR)signals,which will lead to a serious problem for the decoding SSR signals.Firstly,A overlapped SSR signals module is proposed.Then a separating overlapped signals algorithm in the case of single antenna is proposed,and flow chart of signal processing and a FPGA logic design of the presented algorithm are given.Finally,a design of all functional modules is completed using HDL language,and simulation verification experiments are carried out by incorporating of ISE and Modelsim software.Experimental results show that the overlapped SSR signals are decoded effectively.