Title :
Analysis and simulation for a spotlight-mode aircraft SAR in circular flight path
Author :
Jin, Michael Y. ; Chen, Ming
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
A spotlight-mode aircraft SAR in a circular flight path can efficiently obtain an image with very high azimuth resolution or a wider azimuth viewing angle. An analysis of this spotlight-mode SAR is made regarding the required PRF, the predicted resolution, and the computation complexity as a function of the aircraft altitude and the distance between the target and the center of the flight path projection. An efficient processing algorithm based on the exact wide beam spectrum is presented. The results of simulation indicate that the impulse responses meet the predicted resolution performance
Keywords :
environmental science computing; geophysical techniques; geophysics computing; image processing; remote sensing by radar; synthetic aperture radar; aircraft altitude; azimuth resolution; azimuth viewing angle; circular flight path; computation complexity; distance; impulse responses; processing algorithm; spotlight-mode aircraft SAR; wide beam spectrum; Aerospace simulation; Aircraft propulsion; Analytical models; Azimuth; Bandwidth; Computer hacking; Frequency; History; Laboratories; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322059
