Adaptive Cancellation in Transmitted Signal of Repeating Type Jammer Based on Fractional Delay Filter
In the work process of repeating type jammer, the transmitted signal always enters into the jammer’s receiver and make it work abnormally. An adaptive interference cancellation structure based on LMS algorithm is suggested to solve this problem. However considering the wideband interference signal, we improved the structure. The focus of this essay is to utilize variable fractional delay filter to make the reference signal and interference signal aligned, thus to improve the effect of wideband signal cancellation. In addition, the structure of the variable fractional delay filter is given. Finally, the effectiveness of the adaptive cancellation in wideband interference signal by using this structure is proved through simulation.
repeating type jammer LMS algorithm adaptive cancellation variable fractional delay filter
Naijian Sang Xuegang Wang Yun Zhou
School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, 611731, P.R.China
国际会议
2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)
成都
英文
1071-1074
2011-10-24（万方平台首次上网日期，不代表论文的发表时间）