STATION AND METHOD FOR ELIMINATING DISTURBANCE FROM RECEIVED INFORMATION INCLUDING WALSH CODE

摘要

PROBLEM TO BE SOLVED: To provide a station that can receive information including Walsh coding in a plurality of channels and eliminate disturbance from the received information and to provide a method for eliminating the disturbance. SOLUTION: The station is provided with a memory that stores a received signal including a Walsh code in each of a plurality of channels and a signal that is reflected and refracted and with a plurality of 1st signal paths coupled with the memory. Each signal path receives the signal in the memory. The signal passing through the signal path is subjected to a delay and inverse fast Walsh transform and the Walsh code is eliminated from the signal. The phase shift and attenuation in each path can be estimated and the conjugation of the estimation is multiplied with the signal from which the Walsh code is eliminated to produce path outputs of each channel. By combining them, estimation of data from which disturbance is eliminated is obtained. The disturbance can furthermore be eliminated by providing a plurality of 2nd signal paths corresponding to the 1st signal paths and conducting the above processing.