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The application of residue number system (RNS) to digital signal processing lies in the ability to operate on signed numbers. However, the available RNS-to-binary (reverse) converters have been designed for unsigned numbers, which means that they do not produce signed outputs. Usually, some additional circuits are introduced at the output of the reverse converter to map the unsigned generated output...
COordinate Rotation DIgital Computer (CORDIC) algorithm has become widely researched topic in the field of vector rotated Digital Signal Processing (DSP) applications due to its simplicity. In this paper, we have represented the design of pipelined architecture for the computation of Sine and Cosine values based on application specific CORDIC processor. The design of CORDIC in the circular rotation...
This paper presents fast hardware algorithms for channel operations in the Residue Number System (RNS) in terms of addition, subtraction and multiplication. These algorithms compare favorably with other popular algorithms due to the use of special moduli in the form of 2n - 1. They are particularly applicable for the largest channel or redundant channels in RNS.
In many DSP applications (image and voice processing, baseband symbol decoding in high quality communication channels) several dBs of SNR loss can be tolerated without noticeable impact on system level performance. For power optimization in such applications, voltage overscaling can be used to operate the arithmetic circuitry slower than the critical circuit path delay while incurring tolerable SNR...
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