ADAPTIVE INTERFERENCE EXCISION IN DIGITAL SPREAD SPECTRUM COMMUNICATION SYSTEMS BASED ON WAVELET PACKET TRANSFORM

摘要：

Input signals decomposition in digital spread spectrum communication systems(DSSS) is researched with discrete wavelet packet transform, the principle for wavelet packet transform suppressing narrow-band interference is analyzed, the former algorithm is optimized and the corresponding adaptive interference suppression technique is presented.The adaptive filtering technique is adopted to replace sub-band excision which tracks the narrow-band interference, avoiding the useful signal lost and suppressing the narrow-band interference effectively.The research results show that the adaptive wavelet packet transform based on tree structure algorithm has the merits in performance and fast interference allocation speed than the traditional sub-band excision.

关键词： Discrete wavelet packet transform Digital spread spectrum communication systems(DSSS) Adaptive filtering Sub-band excision

作者: YU JIANG HONG-YOU GAO SHAO-PENG YU

作者单位: Information and Communication Engineering College, Harbin Engineering University, Harbin China, 1500 Information and Communication Engineering College, Harbin Engineering University, Harbin China, 1500

会议类型: 国际会议

会议名称: 2007 International Conference on Machine Learning and Cybernetics(IEEE第六届机器学习与控制论国际会议)

会议地点: 香港

会议语种:英文

页码: 3278-3282

在线出版日期: 2007-08-19（万方平台首次上网日期，不代表论文的发表时间）