基于采样数据矩阵和变步长RLS-Kalman算法的空时Rake接收机
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Keywords: 智能天线,自适应天线,空时Rake接收机
Abstract:
提出了一种新的基于采样数据矩阵和变步长RLS-Kalman算法的空时二维Rake接收机,对天线阵列接收信号以码片速率连续进行扩频因子个数采样,构成输入矩阵,经过二维Rake接收机处理后得到输出。自适应算法部分采用时变系统跟踪思想,改造了变步长RLS-Kalman算法,仿真结果表明,二维Rake接收机可以明显提高接收机的输出信干噪比,并保留了扩频信号的结构信息,有利于和多用户检测技术的联合。
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