Title :
SAR-simulation of large urban scenes using an extended ray tracing approach
Author :
Hammer, Horst ; Schulz, Karsten
Author_Institution :
Inst. of Optronics, Syst. Technol. & Image Exploitation (IOSB), Fraunhofer Soc., Ettlingen, Germany
Abstract :
Simulated SAR images can be used for a wide variety of purposes such as classification, building reconstruction and the training of SAR image analysts. In this paper, a SAR simulation tool based on an extended ray tracing approach is introduced. Both phase and amplitude of the returned energy from the scene are simulated, making the coherent integration of the different returns and the simulation of interferometric image pairs possible. This paper focuses on the simulation of urban scenes and large infrastructure elements such as bridges. The simulation of such extended objects poses challenges in memory consumption as well as calculation time necessary for the simulation. These challenges and ways to overcome them are discussed and sample images of large scenes are shown.
Keywords :
digital simulation; geophysical image processing; radar interferometry; ray tracing; synthetic aperture radar; SAR simulation; bridges; extended objects; extended ray tracing approach; interferometric image pair simulation; large infrastructure elements; large urban scenes; returned energy amplitude; returned energy phase; synthetic aperture radar; Bridges; Buildings; Image resolution; Ray tracing; Reflection; Remote sensing; Solid modeling;
Conference_Titel :
Urban Remote Sensing Event (JURSE), 2011 Joint
Conference_Location :
Munich
Print_ISBN :
978-1-4244-8658-8
DOI :
10.1109/JURSE.2011.5764776