Influence of local oscillator phase noise on the resolution of millimeter-wave spectral-line radiometers
Abstract
It is shown that the presence of an important local oscillator phase noise in a spectral-line radiometer amounts to an effective change in the frequency response of its channel filters. Computed data for a situation of practical interest are given. Effect on performance of a system built by the author for the Madrid Astronomical Observatory is described.
- Publication:
-
IEEE Transactions on Instrumentation Measurement
- Pub Date:
- June 1979
- Bibcode:
- 1979ITIM...28..169B
- Keywords:
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- Astronomical Spectroscopy;
- Microwave Radiometers;
- Oscillators;
- Resolution;
- Frequency Response;
- Line Spectra;
- Millimeter Waves;
- Signal To Noise Ratios;
- Instrumentation and Photography