An Ultrastable Microwave Radiometer
An Ultrastable Microwave Radiometer

Author: William Bernard Goggins

Publisher:

Published: 1964

Total Pages: 32

ISBN-13:

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Feedback applied to a radiometer will stabilize its gain when the radiometer receiver is in the forward part of a Type 1 servo. A prototype system has proved stable even under adverse test conditions. The rms noise fluctuation is the same as that of a Dicke radiometer. (Author).

AN ULTRASTABLE MICROWAVE RADIOMETER.
AN ULTRASTABLE MICROWAVE RADIOMETER.

Author: William B Goggins (Jr)

Publisher:

Published: 1964

Total Pages: 4

ISBN-13:

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Feedback applied to a radiometer will stabilize its gain when the radiometer receiver is in the forward part of a Type 1 servo. A prototype system has proved stable even under adverse test conditions. The rms noise fluctuation is the same as that of a Dicke radiometer. (Author).

Microwave Radiometer Systems
Microwave Radiometer Systems

Author: Niels Skou

Publisher: Artech House Publishers

Published: 2006

Total Pages: 254

ISBN-13:

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Thoroughly revising and updating an Artech House classic from 1989, this authoritative resource offers you a comprehensive and current understanding of radiometer systems and shows you how to design a system based on given specifications, taking into account both technical aspects and geophysical realities. The second edition contains a wealth of new material, including coverage of two of today's hottest microwave radiometry topics - polarimetric measurements and aperture synthesis. The book provides you with a complete explanation of radiometer sensitivity, and describes the concept of absolute accuracy and it's associated problems. The four major radiometer principles - total power, Dicke, noise-injection, and correlation - are presented in detail and their sensitivities are derived from the basic sensitivity formula provided in the book. Additionally, you find detailed review of the DTU noise-injection radiometer system.

A Microwave Correlation Radiometer
A Microwave Correlation Radiometer

Author: William Bernard Goggins

Publisher:

Published: 1966

Total Pages: 40

ISBN-13:

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A practical microwave correlation radiometer was built and tested. Feedback was used to ensure stability and make it unnecessary to match receiver channels. The rms temperature deviation was derived and found to be square root of 2 times that of a total power radiometer. Two separate systems to provide an ac multiplier output were built and evaluated. In one, the receiver channels were tuned to a slightly different frequency while in the other, phase reversal in one channel at an ac rate provided the modulation. The latter method proved easier to instrument. (Author).