Title :
Image reconstruction methods for remote sensing by aperture synthesis
Author :
Lannes, André ; Anterrieu, Eric
Author_Institution :
Obs. Midi-Pyrenees, Toulouse, France
Abstract :
In the study of the spaceborne instrument MIRAS (Microwave Imaging Radiometer by Aperture Synthesis), two types of interferometric devices had to be examined: the T and Y configurations. The imaging properties of the corresponding devices (field-aliasing effects, error propagation, multiresolution aspects, etc.) motivated the final choice for the Y configuration. To conduct this study it was therefore essential to master the inverse problems of Fourier synthesis as well as the difficulties related to phase calibration. A general survey of the corresponding techniques is presented
Keywords :
geophysical signal processing; geophysical techniques; hydrological techniques; microwave measurement; millimetre wave measurement; moisture measurement; radiometry; remote sensing; soil; MIRAS; Microwave Imaging Radiometer by Aperture Synthesis; T configuration; Y configuration; geophysical measurement technique; hydrology; image reconstruction method; interferometric device; land surface; microwave radiometry; millimetric; mm wave EHF SHF; radiometric aperture synthesis; remote sensing; soil moisture; spaceborne instrument; terrain mapping; Apertures; Image reconstruction; Image resolution; Instruments; Inverse problems; Microwave devices; Microwave imaging; Microwave propagation; Microwave radiometry; Remote sensing;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399700