Patent ID: 8340220
Filing Date: 2012-12-25
Classification: H04L,H04N

Abstract:
1. A receiver that receives a transmission signal, which has been generated by multiplexing a plurality of modulated carriers, and demodulates the received transmission signal, the receiver comprising: a Fourier transform unit operable to (i) perform Fourier transform on the received transmission signal and (ii) output the transformed transmission signal; a first channel estimation unit operable to (i) estimate channel characteristics based on first signals included in the transformed transmission signal, and (ii) output the estimated channel characteristics as first output signals; a second channel estimation unit operable to (i) estimate channel characteristics based on second signals included in the transformed transmission signal, and (ii) output the estimated channel characteristics as second output signals; an interpolation unit operable to interpolate the first output signals by performing, on the first output signals, filter processing according to a controlled transfer function; a correlation calculation unit operable to perform correlation calculations on the first output signals and the second output signals; and a control unit operable to control the transfer function of the interpolation unit in accordance with results of the correlation calculations.