摘要
以自适应波束形成算法为切入点,针对TD-SCDMA系统,提出一种加入扩频序列的协方差矩阵求逆最小二乘恒模(SMI-LSCMA)波束形成算法。该算法在SMI-LSCMA基础上,利用特定用户信号的扩频序列信息来锁定该用户接收信号,使权值向量更快更准确的收敛。经过仿真验证,该算法具有较好的波束形成能力和较高的输出信噪比。
By using adaptive beam-forming algorithm as the breakthrough point,an improved SMI-LSCMA beam forming algorithm is proposed for TD-SCDMA system,in which the spread spectrum sequence of given user signal is used to lock the signal,and accelerate convergence during weight value update computing algorithm.The simulation verification shows that the algorithm has good ability in beam-forming and higher output SNR.
出处
《西华大学学报（自然科学版）》
CAS
2011年第3期31-33,47,共4页
Journal of Xihua University:Natural Science Edition
基金
国家自然科学基金项目(60572020)
