MATCHED FILTER AND METHOD FOR DETERMINING CORRELATION

摘要

A method for determining correlation using a matched filter in which despreading operation is performing by fixing received data and scanning a despread code. The despread results are integrated for each of the symbol parts before and after a unique symbol partition corresponding to the phase shift of the spread code. The result of the integration of the first half symbol part is added to the result of the integration of the same symbol corresponding to the same phase shift of the spread code and held as the result of the similar processing executed previously. On the other hand, the result of the integration of the second half symbol part are held temporarily and added to the result of the of the same symbol integration corresponding to the same phase shift of the spread code obtained by executing the next similar processing, thus determining the correlation of a symbol unit.