| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pulse radio receiving apparatus and synchronization method, in which even a non-return-to-zero (NRZ)-coded pulse signal can be synchronized and the number of fingers is reduced, as compared with conventional Early/Late DLL scheme. <P>SOLUTION: A relative difference calculating means 1505 comprises maximum value detecting means 1551A, 1551B, minimum value detecting means 1552A, 1552B and addition means 1553A, 1553B, 1554. The maximum value detecting means 1551A detects a maximum value from among (n) pieces of continuous sample values 1504A inputted from a sample means 1504 and outputs a maximum value Amax. A synchronization control means 1506 generates a delay control signal for controlling the phase of a clock signal so as to synchronize an envelope signal and the clock signal in timing, on the basis of a relative amplitude difference signal iV from the relative difference calculating means 1505, and outputs the delay control signal to a delay means 1503. <P>COPYRIGHT: (C)2009,JPO&INPIT |
