DELAY SPREAD SENSOR AND DETECTION SWITCHING CIRCUIT USING IT.

摘要

A multipass component detector (20) estimates and outputs the multipass reception component level at a plurality of timings during the training period of received signals by correlating the received signals with a reference signal. A component ratio computing unit (21) calculates the level ratio of each received component to the whole received power. Thereby, the level ratio of a specific received component can be detected. By switching the detector (20) to a delay detector (11) or adaptive equalizer (15) in accordance with measurement results of delay spread, the power consumption of the detector (20) can be minimized. <IMAGE>