Title :
The “Myth” of the minimum SAR antenna area constraint
Author :
Freeman, A. ; Johnson, W. T K ; Huneycutt, B. ; Jordan, R. ; Hensley, S. ; Siqueira, P. ; Curlander, J.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
1/1/2000 12:00:00 AM
Abstract :
A design constraint traceable to the early days of spaceborne synthetic aperture radar (SAR) is known as the minimum antenna area constraint for SAR. In this paper, it is confirmed that this constraint strictly applies only to the case in which both the best possible resolution and the widest possible swath are the design goals. SAR antennas with area smaller than the constraint allows are shown to be possible, have been used on spaceborne SAR missions in the past, and should permit further, lower-cost SAR missions in the future
Keywords :
geophysical equipment; geophysical techniques; radar antennas; radar theory; remote sensing by radar; satellite antennas; spaceborne radar; synthetic aperture radar; terrain mapping; SAR; SAR antenna; design constraint; geophysical measurement technique; land surface; lower-cost mission; minimum SAR antenna area constraint; minimum antenna area constraint; minimum area constraint; radar antenna; radar remote sensing; satellite antenna; spaceborne radar; synthetic aperture radar; terrain mapping; Aperture antennas; Azimuth; Bandwidth; Laboratories; Propulsion; Radar antennas; Receiving antennas; Spaceborne radar; Synthetic aperture radar; Vehicles;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
