摘要
提出一种基于非抽取小波包变换的直接序列扩频通信系统窄带干扰抑制算法.该算法与TSA算法比较,仿真结果表明,该算法具有很强的鲁棒性。
A new narrowband interference rejection algorithm based on undecimated wavelet packet transform(UWPT) in DSSS systems is presented in this paper. By the combination of frequency shifts with the undecimated wavelet packet transform, some backward frequency shifts are implemented, then synthesized with the wavelet packet, and finally processed by a passband filter. Simulation results demonstrate that it has strong robustness and a lower bit error rate compared with TSA algorithm.
出处
《北方工业大学学报》
2005年第1期36-39,共4页
Journal of North China University of Technology
关键词
扩频通信
频移
非抽取小波包变换
鲁棒性
spread-spectrum communications
frequency shifts
undecimated wavelet packet transfom
robustness
