Imaging radiometer scan simulation results

Author

Kemppinen, Martti ; Hallikainen, Martti

Author_Institution

Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland

Volume

3

fYear

1994

fDate

8-12 Aug 1994

Firstpage

1538

Abstract

Imaging radiometer operation is simulated by a computer program, which computes the antenna radiometric temperature as the convolution of the antenna pattern with an artificial test target brightness temperature deviation and records the data values at the sampling moments as well as the corresponding pixel coordinates. Run results proved that a well-aligned scan pattern reduces data without loss in image quality. In addition, a helicopter-borne imager was found to need at least passive attitude stabilization and the state-of-the-art sampling rate was found too slow

Keywords

geophysical techniques; microwave imaging; microwave measurement; millimetre wave imaging; millimetre wave measurement; radiometry; remote sensing; 93 GHz; EHF SHF; antenna pattern; antenna radiometric temperature; artificial test target brightness temperature deviation; computer program; convolution; data reduction; geophysical measurement technique; helicopter-borne imager; imaging radiometer scan simulation; land surface; microwave imaging; millimetric radiometry; mm wave; passive attitude stabilization; remote sensing; sampling rate; signal processing; terrain mappping; well-aligned scan pattern; Antenna measurements; Brightness temperature; Computational modeling; Computer simulation; Convolution; Image sampling; Radiometry; Shape; Space technology; Testing;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IGARSS.1994.399491

Filename

399491