Off-campus UMass Amherst users: To download dissertations, please use the following link to log into our proxy server with your UMass Amherst user name and password.
Non-UMass Amherst users, please click the view more button below to purchase a copy of this dissertation from Proquest.
(Some titles may also be available free of charge in our Open Access Dissertation Collection, so please check there first.)
Earth remote sensing with an electrically scanned thinned array radiometer
The verification of the Electrically Scanned Thinned Array Radiometer (ESTAR) sensor for remote sensing of soil moisture is presented, and its ability to measure ocean salinity is examined. The research and development that led to verification are presented, beginning with the development of a linearly polarized thinned array, and continuing with the reconstruction of complex correlators, calibration signal distribution, and instrument packaging. Experimental results from two airborne soil moisture campaigns are presented: the first serves to quantitatively verify ESTAR soil moisture capability by comparison with an accepted model and by comparison with another operational sensor; the second demonstrates qualitatively the continuing utility of ESTAR for soil moisture under a variety of soil conditions. Salinity data are presented that suggest an ability to resolve changes in ocean salinity. As the second soil moisture experiment and the salinity experiment are quite recent, full analysis is deferred until more complete in situ data become available. Practical comments on ESTAR experimentation are included in the appendices. ^
Geophysics|Engineering, Aerospace|Engineering, Electronics and Electrical|Remote Sensing
Griffis, Andrew James, "Earth remote sensing with an electrically scanned thinned array radiometer" (1993). Doctoral Dissertations Available from Proquest. AAI9316656.