高动态环境下BFSK信号的快速解调算法  

A Rapid Demodulation Algorithm of BFSK Signals in High Dynamic Conditions

作　　者：周帆[1] 冯永新[1] 潘高峰[2] 张德育[1] 

机构地区：[1]沈阳理工大学信息科学与工程学院,沈阳110159 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《火力与指挥控制》2012年第3期16-19,共4页Fire Control & Command Control

基　　金：国家自然科学基金(60802031);辽宁省创新团队基金资助项目

摘　　要：提出了一种适用于高动态环境下,BFSK信号的快速解调算法。该算法基于FFT频率引导和改进的正交锁相环,利用FFT实现对接收信号的快速捕获,利用改进的正交锁相环对接收信号进行动态跟踪。仿真结果表明在高动态环境中该算法可以快速、准确解调BFSK信号。Rapid demodulation algorithm of BFSK signals that is applied in the high dynamic conditions is put forward.The algorithm is based on the leading of FFT frequency and improved orthogonal PLL,making use of FFT to realize the rapid acquisition of received signals and improved orthogonal PLL to realize the dynamic tracking of received signals.The result of simulation indicates that the algorithm can demodulate BFSK signals rapidly and accurately in the high dynamic conditions.

关 键 词：高动态 FFT 捕获 

分 类 号：TN914.3[电子电信—通信与信息系统]