Title :
Imaging radiometer scan simulation results
Author :
Kemppinen, Martti ; Hallikainen, Martti
Author_Institution :
Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland
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;
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.1994.399491
