| 摘要 |
In a preferred embodiment, an FM demodulator includes an 1 and W sampler for generating data samples of 1 and Q signals of an FM signal. A signal processor derives saples of a modulating waveform of the FM signal from the 1 and Q data samples. Using a Lagrangian interpolation function. Preferably, the processor further utilizes a correction factor to correct the modulating waveform samples obtained from the Langragian-based interpolation, to thereby derive a modulating waveform exhibiting low signal distortion.
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