摘要
首先介绍了RLS,LMS,CMA等适于在CDMA中应用的智能天线算法,并通过建模仿真来分析几种算法的性能及天线阵元数、用户数等指标不同时,智能天线接收信号的性能差别。RLS算法比LMS算法收敛速度快,LMS算法比CMA算法收敛速度快;达到SINR要求时,系统容量与天线阵元数成正比。RLS,LMS算法在解扩前处理收敛速度比解扩后处理收敛速度快。
This paper presents three adaptive algorithms of smart antenna which suit CDMA system, such as RLS,LMS and CMA. Then, the authors study the performance of them, and by modelling and simulating,analyze the difference of the receiving signal to smart antenna when the magnitudes of arrays and users are different.The RLS algorithm is quicker than LMS algorithm in convergence and the LMS is faster than CMA;system capacity and arrays show a direct ratio in required SINR.The speed of convergence of RLS and LMS before solving diffusion is faster than that after solving diffusion.
出处
《重庆邮电学院学报（自然科学版）》
2004年第4期49-53,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
