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26 March 2001 Fully digital foliage-penetrating synthetic aperature radar processor
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A high performance, fully digital Foliage Penetrating Synthetic Aperture Radar (FOPEN SAR) system is described. The FOPEN SAR algorithm is illustrated using Matlab. Digital implementation is derived and simulated using VHDL. The complex mathematical functions required by the algorithm have been demonstrated. Simulations have achieved an SNR equals 290 dB when compared to the baseline results from Matlab. The accuracy of the simulation was limited by the resolution of certain trigonometric and exponential functions implemented using VHDL, and thus can be improved upon. This would allow greater flexibility between speed/area considerations without degradation of the target resolution (100dB-signal accuracy).
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Stephen Arnold, Charles C. Hsu, Mona E. Zaghloul, Harold H. Szu, Nicholas E. Karangelen, and James R. Buss "Fully digital foliage-penetrating synthetic aperature radar processor", Proc. SPIE 4391, Wavelet Applications VIII, (26 March 2001);

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