The Technique of Narrowband Interference Rejection for DS-SS Systems Based on RLS Algorithm
Xu Xiang-dong①; Meng Cang-zhen②③; Yuan Jun-quan①
①Department of Information & Command Automation, AFRA, Wuhan 430019,China; ②Department of Graduate Management, AFRA, Wuhan 430019,China;③94620 Unit of the PLA, Fuzhou 350002,China
Abstract：The agorithm of RLS to suppress unknown narrowband interference is proposed by analyzing the received signals’s statistical character when the narrowband interference is unknown in DS-SS systems. Compared with Blind Recursive Least-Square, it doesn’t 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. It’s easier to be applied.
2007, Vol. 29 
