摘要
根据差分检波原理提出了一种软件无线电中移频键控信号的快速解调算法.理论分析和仿真结果证实了该算法的有效性.与数字化正交解调算法相比,省去了本地载波恢复,计算量小,易于实现,能很好地满足软件无线电中软件编程的要求.
Based on the difference detection principle,an algorithm is presented for achieving fast demodulation of FSK signals in software radio. Theoretical analysis and simulation results verify the efficiency of this algorithm. Comparing with digital quadrature demodulation algorithm, it has nice properties such as no need to resume local carrier recovery, easier to realise and less computation cost. Thus it can satisfy the requirements of demodulation algorithm in sofeware radio.
出处
《长沙理工大学学报（自然科学版）》
CAS
2008年第1期80-83,共4页
Journal of Changsha University of Science and Technology:Natural Science
基金
湖南省教育厅科研资助项目(06C115)
关键词
软件无线电
数字化解调
移频键控
software radio
digital demodulation
frequency shift keying
