BPSK载波同步技术的研究

Research on Carrier Synchronization Technique in BPSK

载波同步是PSK信号相干解调中的一项关键技术,它直接关系到解调的指标。文中对非线性变换———滤波法、同相正交环、逆调制环和判决反馈环四种载波同步方法进行了描述,分析了它们的工作原理,讨论了载波同步的性能指标。

Carrier synchronization is a key tec hnique in the coherent -demodulatio n of PSK sig-nals and it is directly related to the specification of demodulation.Fou r kinds of carrier synchronization are mentioned in this paper,includi ng nonlinear transform -filter,in -phase orthogonal -loop,in-verse -demodulation -loop and decis ion -feedback -loop.Their principl es are analyzed and the specifi-cation of carrier synchronization i s discussed.