منابع مشابه
Pipelined Radix-2 Feedforward FFT Architectures
The appearance of radix-2 was a milestone in the design of pipelined FFT hardware architectures. Later, radix-2 was extended to radix-2. However, radix-2 was only proposed for single-path delay feedback (SDF) architectures, but not for feedforward ones, also called multi-path delay commutator (MDC). This paper presents the radix-2 feedforward (MDC) FFT architectures. In feedforward architecture...
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This paper presents a technique to develop a low power parallel-pipelined architecture for Fast Fourier Transform (FFT). A technique to design FFT architectures via folding transformation and register minimization techniques is proposed. Both complex valued FFT (CFFT) and real valued FFT (RFFT) architectures can be derived using the proposed approach. The proposed architecture for RFFT helps to...
متن کاملPipelined Radix-2k Feedforward FFT Architectures
The appearance of radix-2 was a milestone in the design of pipelined FFT hardware architectures. Later, radix-2 was extended to radix-2. However, radix-2 was only proposed for Single-path Delay Feedback (SDF) architectures, but not for feedforward ones, also called Multi-path Delay Commutator (MDC). This paper presents the radix-2 feedforward (MDC) FFT architectures. In feedforward architecture...
متن کاملPipeline FFT Architectures Optimized for FPGAs
This paper presents optimized implementations of two different pipeline FFT processors on Xilinx Spartan-3 and Virtex-4 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 amaximum clock frequency of 95.2 MHz and use...
متن کاملA Portable 3D FFT Package for Distributed-Memory Parallel Architectures
1 I n t r o d u c t i o n Multidimensional FF’I’s are used frequently in engineerillg and scientific calculations, especially in image processing. Parallel implementations of FFT generally follow two approaches. One is the binary-exchange approach[l ,2], where data exchanges take place in all pairs of processors with processor numbers differing by one bit. Another one is the transpose approach[...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2015
ISSN: 0975-8887
DOI: 10.5120/20350-2536