Proc. SPIE. 11384, Eleventh International Conference on Signal Processing Systems
KEYWORDS: Radar, Digital signal processing, Real time imaging, Imaging systems, Synthetic aperture radar, Field programmable gate arrays, Signal processing, Signal generators, Radar signal processing, Radar imaging
Aiming at the requirement of the range and azimuth resolution of the near range target detection system, this paper completed the design of wideband real-time SAR imaging system. The system adopts “FPGA+RFADC+RFDAC” architecture, it can timely generate LFM(Linear frequency modulation) signal in L/S frequency band , complete the preprocessing of radar echo signals and realize the real-time SAR imaging algorithm, finally upload the imaging results in real time. The effectiveness of each function of the system is verified by simulation and actual measurement.