摘要
研究改进了一种基于软件无线电的GMSK调制解调全数字位同步算法。改进的位同步算法只需要简单的平方和累加运算,算法结构简单,能降低对硬件的要求,适合实现可重复软加载全数字解调。实验结果表明,此算法比数字锁相环方法实现起来更简单、更方便,同步效果也较好。
In this paper, all-digital symbol synchronization algorithm of GMSK modulation is researched. The improved symbol synchronization algorithm only needs squaring accumulate operation in order to make the algorithm simple and reduce the hardware requirements, which can be achieved repeated soft loading all-digital demodulation. The test resuhs show that the synchronization algorithm is easier to implement and more convenient than a digital phase-locked loop method. The synchronization performance is better.
出处
《电视技术》
北大核心
2013年第9期146-148,156,共4页
Video Engineering
基金
广西无线宽带通信与信号处理重点实验室主任基金项目(10913)
关键词
GMSK
1比特差分解调
位同步
全数字
GMSK
one-bit differential demodulation
symbol synchronization
all-digital
