On the optimum radiometer
Article first published online: 7 DEC 2012
Copyright 1973 by the American Geophysical Union.
Volume 8, Issue 10, pages 841–844, October 1973
How to Cite
1973), On the optimum radiometer, Radio Sci., 8(10), 841–844, doi:10.1029/RS008i010p00841.(
- Issue published online: 7 DEC 2012
- Article first published online: 7 DEC 2012
- Manuscript Received: 15 FEB 1972
The optimum signal processing to follow a given radiometer front-end is derived when it is desired to estimate, with smallest rms error, the temperature of a radio source. We find, for the important special case of small sources, that the optimum radiometer is implemented by the use of a compensating filter followed by square-law detection and integration. We consider two examples of receiver front-end gain characteristics, the Lorentzian and Gaussian shapes. Improvement over conventional radiometer performance is shown to be possible.