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Optimum Circuits for Bit Reversal
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- Garrido Gálvez, Mario (author)
- Linköpings universitet,Elektroniksystem,Tekniska högskolan
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- Grajal, Jesus (author)
- University of Politecn Madrid
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- Gustafsson, Oscar (author)
- Linköpings universitet,Elektroniksystem,Tekniska högskolan
- (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2011
- 2011
- English.
- In: IEEE Transactions on Circuits and Systems - II - Express Briefs. - : Institute of Electrical and Electronics Engineers (IEEE). - 1549-7747 .- 1558-3791. ; 58:10, s. 657-661
- Journal article (peer-reviewed)
Abstract
Subject headings
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- This brief presents novel circuits for calculating bit reversal on a series of data. The circuits are simple and consist of buffers and multiplexers connected in series. The circuits are optimum in two senses: they use the minimum number of registers that are necessary for calculating the bit reversal and have minimum latency. This makes them very suitable for calculating the bit reversal of the output frequencies in hardware fast Fourier transform (FFT) architectures. This brief also proposes optimum solutions for reordering the output frequencies of the FFT when different common radices are used, including radix-2, radix-2(k), radix-4, and radix-8.
Keyword
- Bit reversal
- fast Fourier transform (FFT)
- pipelined architecture
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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