Critical technologies for atmospheric composition measurements by microwave limb sounding

G. E. Peckham, R. A. Suttie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Limb sounding radiometers determine the concentrations of atmospheric constituents by measuring thermal emission from the atmospheric limb along a tangent path. A number of critical technologies are needed to build a microwave limb sounding radiometer. The basic components include optics, mixers, local oscillators, IF amplifiers and spectrometers. Designs for all these components exist, but further development would improve performance particularly at frequencies of a few hundred gigahertz and above. The most critical item is the mixer. With no RF amplification, the dominant source of receiver noise is from this device. Mixer noise temperatures are listed together with the radiometer noise temperatures after making allowance for pre-mixer losses and IF amplifier noise.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Pages10-12
Number of pages3
Volume2104
Publication statusPublished - 1993
EventProceedings of the 18th International Conference on Infrared and Millimeter Waves - Colchester, Engl
Duration: 6 Sep 199310 Sep 1993

Conference

ConferenceProceedings of the 18th International Conference on Infrared and Millimeter Waves
CityColchester, Engl
Period6/09/9310/09/93

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limb
radiometer
amplification
spectrometer
temperature
microwave
atmospheric composition

Cite this

Peckham, G. E., & Suttie, R. A. (1993). Critical technologies for atmospheric composition measurements by microwave limb sounding. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2104, pp. 10-12)
Peckham, G. E. ; Suttie, R. A. / Critical technologies for atmospheric composition measurements by microwave limb sounding. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2104 1993. pp. 10-12
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abstract = "Limb sounding radiometers determine the concentrations of atmospheric constituents by measuring thermal emission from the atmospheric limb along a tangent path. A number of critical technologies are needed to build a microwave limb sounding radiometer. The basic components include optics, mixers, local oscillators, IF amplifiers and spectrometers. Designs for all these components exist, but further development would improve performance particularly at frequencies of a few hundred gigahertz and above. The most critical item is the mixer. With no RF amplification, the dominant source of receiver noise is from this device. Mixer noise temperatures are listed together with the radiometer noise temperatures after making allowance for pre-mixer losses and IF amplifier noise.",
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Peckham, GE & Suttie, RA 1993, Critical technologies for atmospheric composition measurements by microwave limb sounding. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 2104, pp. 10-12, Proceedings of the 18th International Conference on Infrared and Millimeter Waves, Colchester, Engl, 6/09/93.

Critical technologies for atmospheric composition measurements by microwave limb sounding. / Peckham, G. E.; Suttie, R. A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2104 1993. p. 10-12.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Peckham GE, Suttie RA. Critical technologies for atmospheric composition measurements by microwave limb sounding. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2104. 1993. p. 10-12