| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of accurately performing multi-user bit demodulation of a synchronous CDMA signal with a short calculation time. <P>SOLUTION: An estimated data value in a first stage of data of each transmitting station is found from the output of a matched filter, and the accuracy of the estimated data value in the first stage is found from a mutual correlation value which shows overlapping between diffusion codes of a plurality of transmitting stations. For the specified number of data, having a low accuracy extracted from among the estimated data values in the first stage, data information having the highest accuracy is found which can be obtained when the possibilities of all the combinations of values the data can take are given. <P>COPYRIGHT: (C)2008,JPO&INPIT |
