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A high resolution soil moisture radiometerThe design of an L-band high resolution soil moisture radiometer is described. The selected system is a planar slotted waveguide array at L-band frequencies. The square aperture is 74.75 m by 74.75 m subdivided into 8 tilted subarrays. The system has a 290 km circular orbit and provides a spatial resolution of 1 km. The aperture forms 230 simultaneous beams in a cross-track pattern which covers a swath 420 km wide. A revisit time of 6 days is provided for an orbit inclination of 50 deg. The 1 km resolution cell allows an integration time of 1/7 second and sharing this time period sequentially between two orthogonal polarization modes can provide a temperature resolution of 0.7 K.
Document ID
19800010884
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dod, L. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1980
Publication Information
Publication: NASA. Langley Res. Center Large Space Systems Technol., 1979
Subject Category
Launch Vehicles And Space Vehicles
Accession Number
80N19161
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19800010868Collected WorksLarge Space Systems Technology, 1979
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