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The development of a second generation electrically scanned thinned array radiometer
Abstract
The development of a second generation Electrically Scanned Thinned Array Radiometer, ESTAR-B, is presented. The design of ESTAR-B and how it relates to ESTAR-A is described, including the use of vertically polarized arrays, the correlator redesign, changes in the null feedback receiver and the calibration network. An examination of antenna effects on the ESTAR inversion is presented paying particular attention to the Fourier inversion and polarization effects in the generalized matrix inversion. The thermal and calibration stabilities of the two ESTARs are compared and improvements in reliability are discussed. Experimental results from antenna chamber measurements and a flight experiment are presented: the first measures the ESTAR-B spatial impulse response; the flight experiment demonstrates ESTAR-B's imaging ability over land and water.
Subject Area
Electrical engineering|Hydrologic sciences|Remote sensing
Recommended Citation
Gaiser, Peter W, "The development of a second generation electrically scanned thinned array radiometer" (1993). Doctoral Dissertations Available from Proquest. AAI9329609.
https://scholarworks.umass.edu/dissertations/AAI9329609