Title :
Imaging Geometry Analysis of 3D SAR using Linear Array Antennas
Author :
Wang, Yanping ; Wang, Bin ; Hong, Wen ; Du, Lei ; Wu, YiRong
Author_Institution :
Nat. Key Lab. of Microwave Imaging Technol., Beijing
Abstract :
Linear array antennas SAR has a resolving capability in the elevation direction, and can get the 3D image of the target. In this paper, we derive the signal model of 3D SAR using a linear array antenna, and get the 3D resolutions and 3D point spread function of array antenna SAR, at the same time the sampling space of array antennas is given. The variance of the resolution in the elevation direction with array antenna angle and referenced look angle is studied. The geometry to reach the best resolution in the elevation direction is analyzed. Meanwhile the resolution for horizontal and vertical antenna array are calculated and compared.
Keywords :
linear antenna arrays; radar imaging; radar interferometry; synthetic aperture radar; 3D SAR; elevation direction; imaging geometry analysis; linear array antennas; signal model; Antenna arrays; Azimuth; Directive antennas; Geometry; Image analysis; Linear antenna arrays; Microwave antenna arrays; Microwave imaging; Signal resolution; Tomography; 3D resolutions; Array antennas; SAR; array antennas angle; look angle;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779576
