| 摘要 |
PROBLEM TO BE SOLVED: To reduce a circuit scale in a rake receiving apparatus for receiving a multiple code in a multipath environment. SOLUTION: An A/D converter 1 outputs a reception baseband digital signal. Each of chip rate finger sections 2-a to 2-c performs inverse diffusion and symbol integration of a reception baseband digital signal from the A/D converter 1 through time-sharing. A symbol rate finger/channel synthesis section 3 estimates the propagation path of each propagation path by time-sharing, based on pilot data from each of the chip rate finger sections 2-a to 2-c, compensates for the propagation path in channel data by time-sharing using the propagation path estimation value; at the same time, performs the rake synthesis of the channel data whose propagation path has been compensated for outputting by time-sharing. A multiple circuit 4 multiplexes channel data from a symbol rate finger/channel combining section 3 for outputting as demodulation data. |
