| 摘要 |
There is disclosed a computation circuit, working in the modulation domain to generate a signal having phase modulation proportional to the ratio of the dividend (numerator) signal to the divisor (denominator) signal. In one embodiment, the phase modulated signal is demodulated by a phase demodulator to produce a baseband quotient signal. The divisor signal maintains inverse proportional control of the modulation gain of the modulator by varying the carrier injection level, resulting in higher bandwidth and accuracy, and lower drift and offset compared to traditional analog computation techniques. In one embodiment the circuit contains all linear components, even though the division function is a non-linear function. The circuit and method operate when the input signals are analog or one or both are in the modulation domain.
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