Patent ID: 6219334
Filing Date: 2001-04-17
Classification: H04L

Abstract:
A receiving apparatus, comprising:receiving means for receiving an orthogonal frequency division multiplexing signal;transforming means for transforming the orthogonal frequency division multiplexing signal received by said receiving means into a frequency spectrum signal;reference signal generating means for generating a reference frequency spectrum signal;channel frequency response calculating means for calculating a channel frequency response with the reference frequency spectrum signal generated by said reference signal generating means and the frequency spectrum signal transformed by said transforming means;filtering means for filtering the channel frequency response calculated by said channel frequency response calculating means;delayed signal estimating means for estimating a delayed signal in a multi-path propagation environment received by said receiving means;bandwidth designating means for designating the bandwidth of said filtering means with information of the delayed signal estimated by said delayed signal estimating means;distortion compensating means for compensating a distortion in the frequency domain due to the multi-path propagation environment of the frequency spectrum signal transformed by said transforming means with the channel frequency response filtered by said filtering means; anddemodulating means for demodulating the frequency spectrum signal whose distortion has been compensated by said distortion compensating means to a digital data sequence.