Patent ID: 6134262
Filing Date: 2000-10-17
Classification: H04B

Abstract:
A receiving apparatus comprising:a receiving circuit including an antenna for receiving a radio wave signal including a pilot signal and data signal respectively spectrum-spread and converting the received radio wave signal into a base band signal;Doppler frequency prediction means for predicting a Doppler frequency in said radio wave signal from the base band signal;correlation detection means including pilot signal PN code generation means for detecting a correlation with respect to said pilot signal in said base band signal every data length of said pilot signal;correlation length changing means for outputting a portion of said detected correlation with a length of said portion of said detected correlation varied in accordance with said Doppler frequency from said Doppler frequency prediction means; anddemodulation means for demodulating said base band signal to detect and output said data signal with a distortion of said data signal compensated in accordance with said portion of said detected correlation.