| 摘要 |
A spread spectrum receiver according to the present invention includes a matched filter (1) that performs a correlation operation between a received signal that is a plurality of multiplexed spread spectrum signals and a spreading code, a cyclic integrator (2) cyclically integrating the correlation waveform, managing cyclic integration values and phases while associating the cyclic integration outputs with the phases, respectively, and setting an maximum detection flag to ON state if an integral value corresponding to a predetermined phase is detected as a maximum, a correlation peak canceller (9) taking the integral value of the phase having the maximum detection flag ON as a maximum of a correlation waveform of the spreading code, generating a replica signal from the integral value, and eliminating the replica signal from the cyclic integration values; and a maximum detection section (10) detecting a maximum in a predetermined cyclic integration period from the cyclic integration values after eliminating the replica signal, and a phase corresponding to the maximum. <IMAGE> |
