| 摘要 |
<p>A method of detecting the clock rate and recovering the carrier in a TDMA signal comprises the steps of: storing for a predetermined amount of time quadrature baseband components (I,Q) as sampled data (at 54); estimating the clock rate phase error of said baseband samples (at 55); correcting the clock phase of said baseband samples from the estimated clock phase error using interpolation over said sampled quadrature components (at 56); estimating the carrier phase error of said stored baseband time corrected quadrature samples (at 58); correcting the carrier phase of said stored baseband time corrected samples according to said estimated phase error (at 59) ; and forwarding said corrected clock and carrier signals to decision circuit means (60) for providing demodulated data. This method permits to minimize the frame overhead allocated to clock and carrier training sequences while maintaining a reliable data signal for error free transmission.</p> |
