Patent ID: 8897354
Filing Date: 2014-11-25
Classification: H04L

Abstract:
1. A receiver apparatus comprising: a Fourier transform unit configured to output a converted signal obtained by converting a received signal from a time domain into a frequency domain; a propagation path estimation unit configured to calculate a plurality of propagation path estimated values based on pilot subcarriers included in the converted signal; and a propagation path compensation unit, including a filter that filters the plurality of propagation path estimated values, configured to compensate propagation path distortion in the converted signal, wherein the filter includes: a plurality of first multipliers configured to multiply the plurality of propagation path estimated values corresponding to a plurality of taps other than a center tap, respectively, by a plurality of filtering coefficients; a first adder configured to add output values of the plurality of first multipliers; a first subtractor configured to calculate an error between an output value of the first adder and a propagation path estimated value corresponding to the center tap; a filtering coefficient generation unit configured to generate the filtering coefficients based on the error; a second multiplier configured to multiply the propagation path estimated value corresponding to the center tap by a first coefficient; a third multiplier configured to multiply the output value of the first adder by a second coefficient; and a second adder configured to add an output value of the second multiplier and an output value of the third multiplier.