| 摘要 |
<p>Disclosed are a correlation operator and carrier frequency synchronization detection circuit, wherein even if the carrier frequency has greatly deviated, the matching of the code phase, carrier frequency, and phase of the carrier frequency can be detected. A correlation value calculation unit (130) is provided with n memory elements (501 to 507) which store spreading codes, an n-integer multiple of first delay elements (401 to 414) which sequentially shift I-component baseband signals by delaying the signals by a certain constant time interval, and an n-integer multiple of first multipliers (701 to 714) which perform multiplication between the frequency shifted I-component baseband signals and memory elements (501 to 507). In the case of Q-component baseband signals, the same configuration as in the case of the I-component baseband signals is taken.</p> |
