Estimates of brightness temperatures from scanning radiometer data
- 1 September 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 26 (5) , 720-726
- https://doi.org/10.1109/tap.1978.1141919
Abstract
In the analysis of antenna temperature maps of the earth obtained by satellite-borne microwave radiometers, estimates of brightness temperatures or averages of brightness temperatures over areas considerably smaller than the region sensed at a given position of the radiometer antenna are often needed. An application of the Backus-Gilbert methodology is made to obtain an objective criterion of the best resolution (in a least squares sense) obtainable from a given system and to investigate the trade-off between resolution and noise in the derived average brightness temperatures. The mathematically related problem of simultaneously analyzing antenna temperature measurements made at different frequencies by antennas with noncoincident antenna patterns is also considered.Keywords
This publication has 6 references indexed in Scilit:
- Three-dimensional vector modeling and restoration of flat finite wave tank radiometric measurementsIEEE Transactions on Antennas and Propagation, 1977
- Application of Fourier transforms for microwave radiometric inversionsIEEE Transactions on Antennas and Propagation, 1975
- The recovery of polarized apparent temperature distributions of flat scenes from antenna temperature measurementsIEEE Transactions on Antennas and Propagation, 1974
- Vertical Resolution of Temperature Profiles Obtained from Remote Radiation MeasurementsJournal of the Atmospheric Sciences, 1972
- The Inverse Problem of Electrical Conductivity in the MantleGeophysical Journal International, 1971
- Uniqueness in the inversion of inaccurate gross Earth dataPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1970