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Microwave Radiometers, Interferometers

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  • First Online:
Encyclopedia of Remote Sensing

Part of the book series: Encyclopedia of Earth Sciences Series ((EESS))

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Synonyms

Aperture synthesis radiometers; Synthetic, interferometric radiometers

Definition

Interferometry. Technique of using the mean product of two random signals to infer some characteristics of the source that generated them.

Aperture synthesis. Application of interferometry to an array of antennas to form an image of the signal source equivalent to one that would be observed by an antenna the size of the whole array.

Introduction

Microwave interferometric radiometers are a particular class of microwave radiometers, which work on the same principles as radio telescopes (Krauss, 1996; Thompson et al., 1988): interferometry and aperture synthesis. In turn, the development of the first aperture synthesis radiometers for space applications has led to a fundamental review of the very principles of radio astronomy exemplified in the Corbella equation. Instead of being pointed to the sky, these radiometers observed the Earth surface from ground-based, airborne, and spaceborne platforms....

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Author information

Authors and Affiliations

  1. European Space Agency (ESA-ESTEC), Keplerlaan 1, 2200, Noordwijk, The Netherlands

    Manuel Martin-Neira

Authors
  1. Manuel Martin-Neira
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Correspondence to Manuel Martin-Neira .

Editor information

Editors and Affiliations

  1. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA

    Eni G. Njoku

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Martin-Neira, M. (2014). Microwave Radiometers, Interferometers. In: Njoku, E.G. (eds) Encyclopedia of Remote Sensing. Encyclopedia of Earth Sciences Series. Springer, New York, NY. https://doi.org/10.1007/978-0-387-36699-9_97

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