APPARATUS FOR ESTIMATING AN ELECTRIC WAVE DELAY, AND A METHOD THEREFOR, PARTICULARLY FOR ACCURATELY ESTIMATING A RECEIVING PATH OF A SIGNAL RECEIVED THROUGH AT LEAST TWO OR MORE MULTI-PATHS IN A DOWNLINK

摘要

PURPOSE: An apparatus for estimating an electric wave delay, and a method therefor are provided to accurately estimate a received signal according to a path, thereby restoring the received signal without an error. CONSTITUTION: A signal/noise detector(206) decomposes a received signal into signal components and noise components by using a correlation matrix. A noise detector(208) calculates an estimated value by using the searched noise components. A signal detector(210) calculates an estimated value by the searched signal components. A detector(214) estimates a path of the receiving signal by using the calculated estimated values.