一种基于块回归更新的解扩重扩判决指导新算法  

A new de-spread re-spread decision directed algorithm based on block recursive updating

作　　者：杜志敏[1] 万彭[1] 高路[1] 吴伟陵[1] 

机构地区：[1]北京邮电大学信息工程学院,北京100876

出　　处：《通信学报》2002年第11期51-56,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(69896243; 60172051)

摘　　要：本文提出一种适用于直扩码分多址系统的智能天线处理盲算法,该算法利用解扩、重扩信号进行反馈指导,并尽可能充分地利用已接收的所有数据。可变步长梯度方法的运用使得该算法在减少运算量的同时依然拥有很快的收敛速度和极好的稳态性能,与LS-DRMTA 和LS-DRMTCMA算法的仿真比较证明了其优越性。This paper develops a new blind adaptive array algorithm for DS-CDMA system by using despread respread feedback directing. More important it tries to exploit all the received data. By using variable step size gradient descent method our algorithm needs less computational load and still has advantages of fast convergence rate and better steady state performance. Simulation results show that it outperforms LS-DRMTA and LS-DRMTCMA.

关 键 词：码分多址 智能天线 解扩重扩指导 可变步长梯度算法 CDMA 移动通信 

分 类 号：TN929.533[电子电信—通信与信息系统]