APPARATUS AND METHOD FOR ESTIMATING DELAY SPREAD IN MULTI-PATH FADING CHANNEL IN WIRELESS COMMUNICATION SYSTEM

摘要

The present invention is up by a strong and simple operation to change SNR (Signal-to-noise ratio) delay estimates the diffusion . This obtains a standard deviation value of the noise component from the time-domain signal values obtained from the received signal to , the time domain signal value in each of the predetermined sampling point, as compared with the predetermined threshold value based on the standard deviation values , in each of the sampling time detects a maximum delay spread value while the delay time for the corresponding time index value of the time-domain signal from the time index of the maximum threshold value or more during the time index .