Title :
A novel design of SAR scattering signal simulator based on AWG
Author :
Xianjun, Pan ; Yanhong, Wu ; Xin, Jia
Author_Institution :
Dept. of Photoelectronic Equip., Acad. of Equip. Command & Technol., Beijing, China
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 RF signal via utilizing Arbitrary Waveform Generation (AWG). 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. At the end, based on the scattering model expressions of a random roughness surface and the electromagnetic wave shadow theory, the Radar Cross Section (RCS) simulation parameters of terrain target is calculated. 2D-FFT method is utilized to improve simulation efficiency significantly.
Keywords :
fast Fourier transforms; function generators; radar cross-sections; radar imaging; ray tracing; synthetic aperture radar; 2D-FFT method; SAR imaging; SAR scattering signal simulator; arbitrary waveform generation; electromagnetic wave shadow theory; radar cross section simulation parameters; random roughness surface; raw signal simulation; signal acquisition; synthetic aperture radar; terrain target; Imaging; RF signals; Radar imaging; Scattering; Spaceborne radar; Synthetic aperture radar; AWG; RCS Simulation; Ray tracing; Scattering Siganl; Synthetic Aperture Radar(SAR);
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555736
