Title :
Spotlight SAR Raw Data Simulation Using Frequency Scaling Algorithm
Author :
Yu, Wang ; Zhi-min, Zhang ; Yun-kai, Deng
Author_Institution :
Chinese Acad. of Sci., Beijing
Abstract :
SAR (synthetic aperture radar) raw signal simulation is an important tool for study and testing of different SAR processing algorithms and new SAR systems. In this paper, the system transfer function of spotlight-mode SAR is evaluated and its accuracy is described. And, frequency scaling algorithm (FSA) is employed to actualize the coupling relation between the range and azimuth in the 2-dimension frequency. An advantage of the frequency scaling algorithm is that it requires only FFT (fast Fourier transform) and complexity multiplication and avoids interpolation.
Keywords :
computational complexity; fast Fourier transforms; synthetic aperture radar; complexity multiplication; fast Fourier transform; frequency scaling algorithm; spotlight synthetic aperture radar raw signal simulation; system transfer function; Azimuth; Frequency domain analysis; Interpolation; Layout; Lighting; Signal processing; Signal processing algorithms; Synthetic aperture radar; System testing; Transfer functions;
Conference_Titel :
Radar Conference, 2007 IEEE
Conference_Location :
Boston, MA
Print_ISBN :
1-4244-0284-0
Electronic_ISBN :
1097-5659
DOI :
10.1109/RADAR.2007.374288
