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- W290653914 abstract "Abstract : In multiplier-less hardware implementations of DSP transforms, multiplication-by-constants are implemented as a network of (wire-)shifts and additions. The number of additions required can be reduced by approximating the multiplicative constants using lower precision fixed-point representations, but the loss of precision increases the numerical error in the implementation. This trade-off can be leveraged to reduce the hardware area, critical path and power/energy while maintaining the perceptible quality of a signal processing application (e.g., MPEG-4). This paper describes an automatic approach to minimize the number of additions subject to a given quality measure, or, vice-versa, to maximize the quality subject to a given number of available additions. Our automatic approach can handle linear DSP transforms in general and includes optimizations over the space of algorithm design. A Verilog backend generates synthesizable descriptions of the final variable-width fixed-point implementations." @default.
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- W290653914 date "2003-09-23" @default.
- W290653914 modified "2023-09-26" @default.
- W290653914 title "Custom Reduction of Arithmetic in Linear DSP Transforms" @default.
- W290653914 hasPublicationYear "2003" @default.
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