| 摘要 |
<p>A numerical voltage controlled oscillator comprising an integrator (206) for generating an estimated sine waveform and an estimated cosine waveform from a variable control signal; a normalizer (208), connected to the integrator (206), for generating a normalization factor from the estimated sine waveform and the estimated cosine waveform; and a multiplier (226), connected to the normalizer (208), for multiplying the normalization factor with the estimated sine waveform and the estimated cosine waveform. The multiplication of the estimated sine waveform and the normalization factor produces the sine waveform and the multiplication of the estimated cosine waveform and the normalization factor produces the cosine waveform. The frequency and phase of the sine and cosine waveforms vary with changes in amplitudes of the variable control signal.</p> |
