改进的时域正交MOE盲干扰抑制算法

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.

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

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.