基于信号盲分离的通信信道干扰抑制算法

针对移动通信双向传输过程中一直存在的抗干扰性能差的问题。提出基于窄带信号盲分离的移动通信信道干扰抑制算法。构建移动通信基站信道的安全承载模型和移动网络基站路由节点数据分配模型,进行信道干扰分析,通过阈值对优先级进行判断,保证OBS网络中偏射路由节点数据的服务质量,构建单通道窄带信号检测模型,设计单通道窄带处理器,实现对窄带信号的盲分离,降低了网络突发冲突阻塞概率与丢包率,基于时延-多普勒域的稀疏性特征计算动态反馈线性非线性抗干扰信道的时域脉冲响应,得到移动通信信道均衡和特征配准结果,实现非线性抗干扰滤波。实验结果表明,改进算法能有效实现干扰抑制和滤波,提高通信信号的输出信噪比。

Interference Suppression Algorithm Based on Signal Blind Source Separation

The process of mobile communication two-way transmission exist the problem of poorly anti-jamming performance has been bad anti-jamming ability of existing problems. Put forward mobile communication channel interference suppression algorithm based on the Narrowband signal blind source separation. Build Safe bearing model and routing node data distribution model of mobile communication base station channel,in order to analysis channel interference . Through the threshold to determine priorities, ensure service quality of Shot of the OBS network routing node data, build single channel narrow band signal detection model, design single channel narrow band processor, realize Narrowband signal blind source separation , reduce the network blocking probability sudden conflict and packet loss rate. Based on the sparse feature of the delay - doppler domain , in order to calculate time domain impulse response of Dynamic feedback linearization nonlinear anti-interference channel. Obtained characteristics of the mobile communication channel registration results. Realize nonlinear interference filter. The experimental results show that, Improved algorithm can effectively realize the interference suppression and filtering, and increase the output signal-to-noise ratio of communication signals.