DocumentCode :
3281932
Title :
A novel method of SAR terrain target scattering signal simulation
Author :
Xianjun Pan ; Yanhong Wu ; Xin Jia
Author_Institution :
Dept. of Photoelectronic Equip., Acad. of Equip. Command & Technol., Beijing, China
Volume :
6
fYear :
2010
fDate :
16-18 Oct. 2010
Firstpage :
2961
Lastpage :
2965
Abstract :
Synthetic Aperture Radar (SAR) raw signal simulation is crucial for SAR system design and processing algorithms. This paper proposes the simulation method of SAR scattering signal of big area terrain target. At first, the SAR imaging principle is analyzed. Then, the space-borne SAR scenario model is constructed. The echoes of point target are calculated, which is impulse response of the SAR signal acquisition system. In tradition, the Radar Cross Section (RCS) simulation parameters of terrain target calculation is based on the scattering model expressions of a random roughness surface and the electromagnetic wave shadow theory. The approach of this communication utilizes the practical SAR SLC (Single Look Complex) or MGD (Multi-Look Ground-range Detected) image as terrain target backscattering coefficient, instead of the traditional method aforementioned. Then, 2D-FFT method is utilized to improve simulation efficiency significantly. The results of simulation prove the validity of the approach.
Keywords :
fast Fourier transforms; radar cross-sections; radar signal processing; signal detection; synthetic aperture radar; target tracking; SAR imaging principle; SAR scattering signal; SAR signal acquisition system; SAR system design; SAR terrain target scattering signal simulation; electromagnetic wave shadow theory; impulse response; radar cross section simulation; random roughness surface; scattering model expression; space-borne SAR scenario model; synthetic aperture radar raw signal simulation; terrain target backscattering coefficient; Azimuth; Computational modeling; Convolution; Radar imaging; Scattering; Spaceborne radar; Synthetic aperture radar; Backscattering Coefficient; Scattering Signal; Simulation; Synthetic Aperture Radar(SAR); Terrain Target;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image and Signal Processing (CISP), 2010 3rd International Congress on
Conference_Location :
Yantai
Print_ISBN :
978-1-4244-6513-2
Type :
conf
DOI :
10.1109/CISP.2010.5648086
Filename :
5648086
Link To Document :
بازگشت