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FPGA-based accelerators have repeatedly demonstrated superior speed-ups on an ever-widening spectrum of applications. However, their use remains beyond the reach of traditionally trained applications code developers because of the complexity of their programming tool-chain. Compilers for high-level languages targeting FPGAs have to bridge a huge abstraction gap between two divergent computational...
This paper presents optimized implementations of two different pipeline FFT processors on Xilinx Spartan-3 and Virtex-E FPGAs. Different optimization techniques and rounding schemes were explored. The implementation results achieved better performance with lower resource usage than prior art. The 16-bit 1024-point FFT with the R22SDF architecture had a maximum clock frequency of 95.2 MHz and used...
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