| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain a spread spectrum receiver which realizes synchronization detection by a fast and small-scale circuit constitution. <P>SOLUTION: The spread spectrum receiver is provided with: a matched filter 1 for performing correlated calculation of a received signal obtained by multiplexing a plurality of spread spectrum signals and a spread code; a cyclic integrator 2 which performs cyclic integration to correlated waveforms to correlate and manage a cyclic integration output and a phase and stands a maximum value detected flag in the case of detecting an integral value corresponding to a prescribed phase as a maximum value; a correlated peak canceller 9 which generates a replica signal from the integral value regarding the integral value of a phase where the maximum value detected flag stands as the maximum value of the correlated waveforms and removes the replica signal from the cyclic integration output; and a maximum value detection part 10 for detecting a maximum value in a prescribed cyclic integration period and a phase corresponding to the maximum value from the cyclic integration output after removing the replica signal. <P>COPYRIGHT: (C)2003,JPO</p> |
