首页>
外国专利>
Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system
Method and apparatus for broadband carrier frequency and phase recovery in coherent optical system
展开▼
机译:相干光学系统中宽带载波频率和相位恢复的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A digital apparatus comprising a fast Fourier transform (FFT) module configured to transform a time domain optical signal into a frequency domain optical signal, a circular shifter coupled to the FFT module and configured to provide coarse frequency offset compensation to the frequency domain optical signal based on an estimated frequency offset; and a frequency offset estimation module coupled to the circular shifter and configured to provide the estimated frequency offset based on a power spectrum of the frequency domain optical signal or a data block header autocorrelation of the time domain optical signal.
展开▼