Servo techniques in oscillators and measurement systems
Abstract
The errors and offsets of frequency-lock loops which result from background, noise and other effects are studied. Third harmonic lock systems and square wave frequency modulation are analyzed as possible solutions to some of these problems. Servo system response which is applicable to both frequency and phase-lock loops is examined. The effects of noise on such servo systems are discussed in detail, and an example is given of how to obtain optimum performance from a pair of phase-locked oscillators. A simple circuit is suggested for phase-locking high quality oscillators.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1976
- Bibcode:
- 1976STIN...7724414W
- Keywords:
-
- Mechanical Measurement;
- Mechanical Oscillators;
- Servomechanisms;
- Feedback Control;
- Frequency Modulation;
- Phase Locked Systems;
- Electronics and Electrical Engineering