DS-CDMA系统中基于CMOE准则的DOA估计  

DOA Estimation based on Constraint Minimum Output Energy Criteria in DS-CDMA Systems

作　　者：姜萍[1] 王建新[1] 花汉兵[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094

出　　处：《通信技术》2009年第10期131-133,136,共4页Communications Technology

摘　　要：针对DS-CDMA系统的多用户环境,提出了一种有效的DOA估计算法。首先基于CMOE准则实现各路径的盲分离,即通过抑制多址干扰来提取感兴趣信息;然后采用矩阵点除算法或LS拟合法从分离的信息中求解DOA信息。算法避免了特征值分解这类复杂运算,同时也不需要估计信源个数并自动实现了路径配对,仿真实验验证了算法的有效性。In this multi user environment interested information is paper, an First, the extracted effective DOA estimation algorithm is presented for DS-CDMA systems paths have been blindly split in accordance with the CMOE criterion through suppressing multiple access interference; then, with matrix dot d under ~ The ivide algorithm or LS fitting algorithm, the DOA information is derived from the split information. The algorithm requires neither complex eigenvalue decomposition operations nor source number estimation. In addition, the path pairing is also automatically realized. Simulation results confirm the effectiveness of the algorithm.

关 键 词：智能天线 波达方向估计 CMOE准则 空时信号处理 

分 类 号：TN911.7[电子电信—通信与信息系统]