| 摘要 |
<p>The problem of the CDMA communication system that the CDMA communication system is vulnerable to a multipath delay wave and an interference is solved. In a direct spreading CDMA communication system, each transmitter (TX) has a function of modulating a spread sequence with transmission information to generate a transmission data frame, modulating a spread sequence with pilot information to generate a pilot frame, and transmitting the frames. A receiver (RX) has a function of receiving the corresponding reception data frame and the pilot frame and analyzing both frames, a function of storing the outputs of the analysis as a pilot response output and a data response output, a function of estimating the influence of the interference component from both response outputs and eliminating the influence to generate a correction output, and a function of hard-judging the correction output. As a result, the receiver (RX) restructures the transmitted information without undergoing interference.</p> |
