首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Tracking the Frequency Translation of a Sum of Orthogonal Sinusoids
Authors:Tretter  SA
Institution:Department of Electrical Engineering University of Maryland College Park, Md. 20742;
Abstract:The maximum likelihood approach is used to derive a method for estimating and tracking the frequency translation of a signal consisting of a sum of orthogonal sinusoids corrupted by additive white noise. The likelihood function is reduced to an equivalent statistic expressed in terms of the squared magnitude of the finite Fourier transform of the received signal. A function that generates an error signal for a frequency translation tracking loop is derived, and a method of generating the error signal using the discrete Fourier transform (DFT) of the received signal weighted by a linear ramp is suggested. Two noise-free examples are presented.
Keywords:
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号