电子科技2012,Vol.25Issue(4):1-5,5.
一种新的MPSK信号调制分类算法
A New Algorithm for Modulation Classification of MPSK Signals
摘要
Abstract
A new algorithm based on two-order and four-order cyclic cumulants is proposed for modulation classification of Mary Phase Shift Keying(MPSK) signals.MPSK signals are classified to BPSK and QPSK or more than 4PSK modulation subclasses by the feature of their two-order and four-order cyclic cumulants,then a feature parameter is picked up from signals' two-order and four order cyclic cumulants at the cyclic frequency which equals the frequency of signals,and finally BPSK and QPSK are classified by the feature parameter.Even if the probabilities of codes are unequal,the algorithm is still effective.Because the cyclic cumulants of Gaussian noise which are higher than two-order are zero,to some extent,the algorithm can depress Gaussian noise.The result of simulation shows that the algorithm is efficient.关键词
循环累积量/调制分类/多进制相移键控Key words
cyclic cumulants/modulation classification/mary phase shift keying分类
信息技术与安全科学引用本文复制引用
付琴琴..一种新的MPSK信号调制分类算法[J].电子科技,2012,25(4):1-5,5.基金项目
中央高校基本科研业务费专项资金资助 ()