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  2. Microwave radiometer - Wikipedia

    en.wikipedia.org/wiki/Microwave_radiometer

    A microwave radiometer (MWR) is a radiometer that measures energy emitted at one millimeter-to-metre wavelengths (frequencies of 0.3–300 GHz) known as microwaves. Microwave radiometers are very sensitive receivers designed to measure thermally-emitted electromagnetic radiation. They are usually equipped with multiple receiving channels to ...

  3. Electrically scanning microwave radiometer - Wikipedia

    en.wikipedia.org/wiki/Electrically_Scanning...

    The electrically scanning microwave radiometer (ESMR) was an instrument carried by the Nimbus 5 and Nimbus 6 satellites, precursor to the scanning multichannel microwave radiometer (SMMR) and special sensor microwave/imager (SSM/I) instruments.

  4. Microwave Imaging Radiometer with Aperture Synthesis

    en.wikipedia.org/wiki/Microwave_Imaging...

    Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) is the major instrument on the Soil Moisture and Ocean Salinity satellite (SMOS). MIRAS employs a planar antenna composed of a central body (the so-called hub) and three telescoping, deployable arms, in total 69 receivers on the Unit.

  5. Special sensor microwave/imager - Wikipedia

    en.wikipedia.org/.../Special_Sensor_Microwave/Imager

    The Special Sensor Microwave/Imager (SSM/I) is a seven-channel, four-frequency, linearly polarized passive microwave radiometer system. [1] It is flown on board the United States Air Force Defense Meteorological Satellite Program (DMSP) Block 5D-2 satellites.

  6. Radiometer - Wikipedia

    en.wikipedia.org/wiki/Radiometer

    A radiometer or roentgenometer is a device for measuring the radiant flux (power) of electromagnetic radiation. Generally, a radiometer is an infrared radiation detector or an ultraviolet detector. [1] Microwave radiometers operate in the microwave wavelengths.

  7. Advanced Technology Microwave Sounder - Wikipedia

    en.wikipedia.org/wiki/Advanced_Technology...

    The Advanced Technology Microwave Sounder (ATMS) is a 22-channel scanning microwave radiometer for observation of the Earth's atmosphere and surface. It is the successor to the Advanced Microwave Sounding Unit (AMSU) on NOAA weather satellites.

  8. Scanning multichannel microwave radiometer - Wikipedia

    en.wikipedia.org/wiki/Scanning_multichannel...

    The Scanning Multichannel Microwave Radiometer (SMMR) [pronounced simmer] was a five-frequency microwave radiometer flown on the Seasat and Nimbus 7 satellites. Both were launched in 1978, with the Seasat mission lasting less than six months until failure of the primary bus. The Nimbus 7 SMMR lasted from 25 October 1978 until 20 August 1987.

  9. SSMIS - Wikipedia

    en.wikipedia.org/wiki/SSMIS

    The Special Sensor Microwave Imager / Sounder (SSMIS) is a 24-channel, 21-frequency, linearly polarized passive microwave radiometer system. The instrument is flown on board the United States Air Force Defense Meteorological Satellite Program (DMSP) F-16, F-17, F-18 and F-19 satellites, which were launched in October 2003, November 2006, October 2009, and April 2014, respectively. [1]

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