采用线性叠加细节捕捉的网络自干扰盲辨识算法  

Network Self Interference Blind Identification Algorithm Using Linear Superposition of Detail Capture

作　　者：郭猛[1] 闫洪亮[1] 

机构地区：[1]河南城建学院计算机学院,河南平顶山467036

出　　处：《科技通报》2015年第2期191-193,共3页Bulletin of Science and Technology

摘　　要：在大规模多输入多输出(MIMO)网络中,中继发送端和接受端之间的自干扰降低了网络系统信道容量,严重影响了系统的传输性能,为解决这一问题,需要对网络自干扰信号的盲辨识。提出一种基于线性叠加细节捕捉的网络自干扰盲辨识算法,构建网络中继发送端和接受端的自干扰产生与信号模型,设计全双工中继网络通信系统模型,进行MIMO网络数据交换控制,进一步采用线性叠加细节捕捉方法,构建前馈滤波器,对信号进行前置处理,提高滤波增益,设计线性叠加函数,实现干扰信号的细节特征捕捉,根据信息分配原则,实现网络自干扰盲辨识算法改进。仿真结果得出该算法的盲辨识云图能有效识别网络自干扰信号,并实现信道区分和干扰滤波处理,信号云图特征明显,能达到辨识信道和均衡信号的要求。信道容量和检测性能等指标优越于传统方法,展示了其有效性,具有较高应用价值。In a large multi input multi output（MIMO） relay networks, the sending and receiving ends between the self interference reduces the capacity of the channel network system, it seriously affected the transmission performance of the system, in order to solve this problem, we need for blind identification of network self interference signal. A network self interference blind identification algorithm is proposed based on linear superposition of detail capture, constructing the network relay and sending end and receiving end self interference generation and signal model, design of full duplex relay network communication system model, MIMO network data exchange control, further by linear superposition method construction details, the feed forward filter, deals with signal, and improve the filter gain, linear superposition function design, details capture features of the disturbance signal is realized, according to the information distribution principle, the self interference blind identification algorithm is improved. Simulation results show the algorithm of blind identification images can effectively identify the network self interference signal, and realize the channel to distinguish and interference filter processing, signal nephogram characteristics obviously, it can achieve the channel identification and equalization signal requirements. The channel capacity and the detection performance is superior to traditional methods, it has higher application value.

关 键 词：MIMO 中继发送端 盲辨识 算法 

分 类 号：TN925[电子电信—通信与信息系统]