| 摘要 |
The invention relates to direct digital receiver for an RF coil (11, 12, 13, 200), in particular of a magnetic resonance imaging system (1), for providing a digital sample output signal at a digital operating frequency in a time base of a system clock (222), the receiver comprising:—an analogue-to-digital converter (214) for converting an analogue signal received from the RF coil (11, 12, 13, 200) to a digital sample input signal, the analogue-to-digital converter (214) being driven by a local clock, a local clock oscillator (400) adapted for providing the local clock in a local clock time base to the analogue-to-digital converter (214), the local clock time base being independent of the system clock time base, a phase detector (402) adapted for determining a phase difference (512) between the system clock (222) and the local clock, a resampling unit (224) adapted for resampling the digital sample input signal to the digital sample output signal using said phase difference (512). |
