Frequency spectrum analyzer with phase-lock
Patent
·
OSTI ID:5222214
A frequency-spectrum analyzer with phase-lock for analyzing the frequency and amplitude of an input signal is comprised of a voltage controlled oscillator (VCO) which is driven by a ramp generator, and a phase error detector circuit. The phase error detector circuit measures the difference in phase between the VCO and the input signal, and drives the VCO locking it in phase momentarily with the input signal. The input signal and the output of the VCO are fed into a correlator which transfers the input signal to a frequency domain, while providing an accurate absolute amplitude measurement of each frequency component of the input signal.
- DOE Contract Number:
- AC07-76ID01570
- Assignee:
- Dept. of Energy
- Application Number:
- ON: DE82013596
- OSTI ID:
- 5222214
- Country of Publication:
- United States
- Language:
- English
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