Patent ID: 8180004
Filing Date: 2012-05-15
Classification: H04L

Abstract:
1. A method for estimating an amount of distortion, comprising: receiving a transmitted signal to acquire a received signal; demodulating the received signal to acquire a demodulated signal; converting the demodulated signal into a digital signal; acquiring, as acquired data, (K+L) pieces of data from a portion corresponding to a pilot signal of the digital signal, where K is a number of samples included in one pilot signal symbol of the received signal, and L is DK with D being a predetermined integer value; and determining an estimated value of a carrier frequency offset based on a first Equation, where vector r where Rp is a complex number derived from a second Equation, fs is a sampling frequency, and the second Equation is: where vector 1 is an (L×1) vector with all elements being one, H denotes a Hermitian matrix, and T denotes a transpose matrix.