改进的时域正交MOE盲干扰抑制算法  

Research on an Improved Time-Domain Orthogonal MOE Blind Interference-Suppressing Algorithm

作　　者：张伟[1] 彭韬[1] 

机构地区：[1]解放军镇江船艇学院,江苏镇江212003

出　　处：《火力与指挥控制》2009年第11期9-11,共3页Fire Control & Command Control

基　　金：国家自然科学基金资助项目(60472049)

摘　　要：提出了一种能够同时抑制窄带和多址干扰的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。通过信道估计调整步长因子,信道估计运算利用了检测器的中间运算结果,没有付出多余运算量。仿真结果表明,在维持LMS类算法的SINR性能的前提下,算法明显缩短了收敛时间,具有一定的应用价值。A TDO-MOE blind interference-suppressing algorithm is proposed which can suppress NBI and MAI at the same time. This algorithm imports TDO-LMS algorithm into MOE algorithm, so that the shortcoming of divergence in blind detect is overcame. Channel estimation is utilized to adjust step-factor. Channel estimation makes use of the middle operation results of the detector, so no more operation load will be paid. The simulation results manifest this algorithm dramatically shortens the time to convergence and maintains the SINR performance of LMS class algorithms, so it is valuable in applications to a certain extent.

关 键 词：平均输出能量 步长调整 误差性能 

分 类 号：TN927[电子电信—通信与信息系统]