基于递归最小二乘的DS-SS系统抗窄带干扰技术

徐向东; 孟藏珍; 袁俊泉

doi:10.3724/SP.J.1146.2006.00492

基于递归最小二乘的DS-SS系统抗窄带干扰技术

doi: 10.3724/SP.J.1146.2006.00492

徐向东^{①;孟藏珍},
孟藏珍,
袁俊泉

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出版历程
- 收稿日期: 2006-04-17
- 修回日期: 2006-11-06
- 刊出日期: 2007-11-19

The Technique of Narrowband Interference Rejection for DS-SS Systems Based on RLS Algorithm

摘要

摘要: 该文针对DS-SS系统的未知窄带干扰，通过分析接收信号统计特性，提出递归最小二乘(RLS)滤波的干扰抑制算法。与盲递推最小二乘算法相比，减少了约束条件，降低了复杂度，而且克服了LS滤波算法不能实时处理的弱点，可以实现快速算法。仿真结果表明，该算法抑制干扰对DS-SS系统性能改善优于自适应线性滤波算法，而且不用考虑算法的收敛性，更利于工程应用。
- 扩频;递归最小二乘;最小二乘;窄带干扰
Abstract: The agorithm of RLS to suppress unknown narrowband interference is proposed by analyzing the received signalss statistical character when the narrowband interference is unknown in DS-SS systems. Compared with Blind Recursive Least-Square, it doesnt need limiting condition and reduces the complication.What is more, it makes up the shortcoming that the agorithm of LS cannot process the real-time signal, and is implemented with fast algorithms. The simulation results show that the performance to suppress narrowband inteference for DS-SS systems by the agorithm is better than the one of adaptive linear filter, and the convergence is not cared. Its easier to be applied.

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