摘要
基于TK能量估计算子,提出了一种适用于超宽带通信的共存干扰检测算法。该算法通过在TK变换检测支路中加入标称频率载波,利用TK变换后的差频分量完成对共存窄带干扰的准确测频。本文对所提算法进行了数学建模和仿真分析。仿真结果显示,该算法可对超宽带通信频段中的共存干扰进行准确的测频,并由于省去了经典测频系统中的模拟混频部分,因此大大降低了测频系统的处理复杂度,为超宽带通信自适应抗干扰技术的实用化提供了一条新的研究途径。
Based on Teager-Kaiser （TK） power estimating operator, the novel coexisting inter- ference （CI） detecting algorithm is proposed for ultra-wide band （UWB） communication. It can detect the CI frequency accurately by adding the standard frequency signal to the TK dispo- sing branch and using the discrepancy frequency information provided by the TK transforma- tion. The mathematic model is built and simulation analysis for the novel algorithm is imple- mented. The simulation results show that the algorithm can accurately detect the CI frequency within UWB communication band. Furthermore, the novel algorithm can leave out the analog mixer used widely in typical frequency detecting system and reduce the deposing complexity ev- idently, which can provide a new researching method for development of adaptive anti-jamming technology for UWB communications.
出处
《数据采集与处理》
CSCD
北大核心
2013年第6期697-705,共9页
Journal of Data Acquisition and Processing
基金
国家自然科学基金(61172169)资助项目
陕西省自然科学基金(2009JQ8020
SJ08F11)资助项目
关键词
超宽带
干扰抑制
干扰检测
抗干扰
TK变换
ultra-wideband
interference suppression
interference detection
anti-jamming
Teager-Kaiser transform
