Title :
Determining the critical pointing error for imaging microwave radiometers on board low altitude aircrafts
Author :
Kempinnen, M. ; Panula-Ontto, Esa
Author_Institution :
Lab. of Space Technol., Helsinki Univ. of Technol., Espoo, Finland
fDate :
11/1/1998 12:00:00 AM
Abstract :
Imaging radiometer platform perturbation reduces the image quality by distorting the scan path and varying the incidence and tilt angles of the antenna. This scan simulation-based study quantifies the effect of the perturbation on the image quality, indicating that the mean pointing error should be less than 0.2×3-dB beamwidths
Keywords :
geophysical techniques; radiometry; terrain mapping; airborne remote sensing; critical pointing error; geophysical measurement technique; imaging microwave radiometer; incidence angle; land surface; low altitude aircraft; microwave radiometry; platform perturbation; pointing error; scan path; terrain mapping; tilt angle; Aircraft; Computational modeling; Computer vision; Image quality; Layout; Microwave antennas; Microwave imaging; Microwave radiometry; Radiometers; Space technology;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
