摘要
提出一种小波分析和滤波检测相融合的相位调制信号检测方法.设计了一种微波光子滤波器对电磁信号进行相位调制,利用小波分析提高信道对信号的识别精度,减少信道差异,得到相位调制结果.采用改进的二元假设方法对相位调制结果进行检测,确定信道中是否存在电磁信号,并给出电磁信号在信道中能量积聚情况的检测函数.实验结果表明,所提出的方法具有优异的跳频特性,且运营成本低.
A phase modulation signal detection method based on combining wavelet analysis and filtering detection is proposed. A microwave photonic filter is designed to modulate phase while wavelet analysis used improve identification accuracy of signal channel to reduce the effect of channel difference to implement phase modulation. Two assumption method is used to detect the phase modulation results and determine whether presence of electromagnetic signals is in the channel, the detection function are given for energy accumulation of channel in the electromagnetic signal. The experimental results show that the proposed method has excellent characteristics and frequency hopping, operation cost is low.
作者
马瑛
韩艳赞
MA Ying HAN Yan-zan(Department of Electronic Information Engineering , Henan Polytechnic Institute, Nanyang 473000, Henan , Chin)
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
北大核心
2017年第3期365-368,共4页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
南阳市科技攻关研究计划项目(2013GG035)
关键词
相位调制
信号检测
小波分析
滤波融合
wavelet analysis
filtering fusion
phase modulation
signal detection
