一种基于正交MOE的盲干扰抑制算法研究  

TDO-MOE Algorithm Based on Channel Estimation

作　　者：宋涛[1] 程剑[2] 李广侠[2] 

机构地区：[1]解放军理工大学通信工程学院研究生4队,江苏南京210007 [2]解放军理工大学通信工程学院卫星通信系,江苏南京210007

出　　处：《军事通信技术》2007年第2期31-34,39,共5页Journal of Military Communications Technology

基　　金：国家"十五"预研基金资助项目(020000011001030602)

摘　　要：提出了一种能够同时抑制窄带和多址干扰的时域正交TDO-MOE盲干扰抑制算法,算法将TDO-LMS算法引入到MOE盲检测算法,克服了TDO算法在盲检测中容易发散的缺点,并通过信道估计调整步长因子,信道估计利用了检测器的中间运算结果,没有付出多余运算量.文章推导了算法的收敛性。仿真表明:在维持LMS类算法的SINR性能的前提下,算法明显缩短了盲检测器的收敛时间。The paper put forward a low computing complex TDO-MOE improved algorithm which can suppress both MAI and NBI. This algorithm imports TDO-LMS method to MOE blind algorithm. It conquers the shortcoming of radiation in TDO-LMS algorithm and adjusts the step factor automatically by channel estimation which uses the middle result of detections, It saves residual operation working. The article proved the convergence of this algorithm theoretically, analysed the complex of algorithm. Computer simulations in static and dynamic state show that the improved algorithm remains the out SINR characteristic, and has better convergence characteristic with an engineer application value.

关 键 词：最小输出能量 步长调整因子 剩余误差性能 

分 类 号：TN913[电子电信—通信与信息系统]