| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a receiver capable of performing the synchronization tracking of symbol synchronization, code synchronization and clock synchronization. <P>SOLUTION: This receiver has a channel matched filter (CMF) 20 for receiving a spread spectrum signal obtained by digitally converting a received signal and outputting a rake synthetic result, a carrier recovery circuit 24 for eliminating a carrier offset from the rake synthetic result, a correlation circuit 28 for detecting a correlation from the rake synthetic result, a symbol timing detection circuit 32 for extracting a symbol from a correlation result, a framer circuit 48 for discriminating a frame configuration from data, and a symbol timing recovery circuit 42 for generating a timing phase corresponding to a timing error amount for each symbol timing. The channel matched filter (CMF) 20 performs multi-fading correction by feedback from the symbol timing detection circuit 32 and performs synchronous tracking in accordance with a timing phase fed back from the symbol timing recovery circuit 42. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
