Carrier frequency deviation estimating apparatus and carrier wave frequency deviation estimating method

摘要

In the related carrier frequency deviation estimating apparatus, it is difficult to accurately estimate the frequency deviation over a wide range without causing an increase in power consumption. Therefore, the carrier frequency deviation estimating apparatus of the present invention inputs an input signal to an input Sampled signal oversampled at a plurality of times of the symbol rate of the signal, a time variation vector calculation for calculating a time variation vector between two temporally consecutive sample signals included in the oversampled signal Filter means for calculating the average value of the time variation vector, and frequency deviation estimation means for calculating the carrier frequency deviation estimate value based on the average value.