发明授权
US08023829B2 Demodulation of phase modulated fibre-optic sensor system signals 有权
相位调制光纤传感器系统信号的解调

Demodulation of phase modulated fibre-optic sensor system signals
摘要:
Demodulation apparatus for demodulating phase-modulated signals comprises a quadrature signal generator (QSG) for generating in-phase (I) and quadrature-phase (Q) signals in response to an unmodulated input signal. The QSG provides fast frequency tracking of the input signal and excludes any high-frequency content the input signal.
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