电讯技术Issue(8)：1023-1027,5.DOI:10.3969/j.issn.1001-893x.2013.08.010
基于时域分割的DS／FH信号参数估计*
Parameter Estimation of DS/FH Signals Based on Temporal Segmentation
摘要
Abstract
In order to avoid the shortcomings such as the limited time-frequency resolution,redundant cross terms and poor real-time in using the time-frequency distribution to estimate the DS/FH (Direct Sequence/Fre-quency Hopping)signal parameters,a new parameter estimation method that takes the time domain analysis as a starting point is presented through analyzing the time-frequency characteristics of DS/FH signal . Based on timedomain analysis of the test signal,the method divides the DS/FH signal in the time domain because the different frequency signals have different number of cycles . Then,it completes estimation of the parameters such as hop-ping period,dwell time,and hopping frequency . The experimental results show that the method is extremely ef-fective for DS/FH signal . Apart from that,it features high estimation accuracy,fast operation and no interfer-ence frequency.关键词
直扩/跳频混合扩频信号/参数估计/时域分割Key words
DS/ FH hybrid spread spectrum signal/parameter estimation/temporal segmentation分类
信息技术与安全科学引用本文复制引用
席有猷,程乃平,郝建华,刘茂国..基于时域分割的DS／FH信号参数估计*[J].电讯技术,2013,(8):1023-1027,5.
