| 摘要 |
A synchronous demodulator electronic circuit (1) for phase modulation signals (IF) comprises, in a control loop: a discrete Fourier transform unit (12) for receiving the phase modulation signals (IF) to be demodulated; and means (16, 17, 18) of recovering a carrier frequency of the phase modulation signals (IF). The discrete Fourier transform unit (12) performs combination of the operations of: mixing sampled phase modulation signals (IF) with one or more frequency and phase adapted digital conversion signals; and low-pass filtering the mixed signals, in order to supply one or more demodulated signals (I_OUT) at the output of the discrete Fourier transform unit (12). |
