| 摘要 |
A digital radio receiver is adapted to receive radio signals which are spread-spectrum modulated using continuous phase modulation, and consist of a sequence of chips. The receiver comprises means for receiving an analogue radio signal having a carrier frequency, a plurality of correlators( 6, 8) each corresponding to a different chip sequence which share a common estimator (4) for estimating a frequency offset between said carrier frequency and a nominal carrier frequency, and a decision unit (12) for determining which of said correlators produces a desired output signal. |
