New function interpolator using small memory

Belle W. Y. Wei; Jun Cao; Jie Cheng

doi:10.1117/12.325712

2 October 1998 New function interpolator using small memory

Belle W. Y. Wei, Jun Cao, Jie Cheng

Proceedings Volume 3461, Advanced Signal Processing Algorithms, Architectures, and Implementations VIII; (1998) https://doi.org/10.1117/12.325712
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

High-speed elementary function generation is crucial to the performance of many DSP applications. This paper presents a new Composite Polynomial Method for generating elementary functions using second-order interpolation. The composite polynomial takes the average of two second-degree polynomials with an overlapping subinterval, and features the minimum approximation error the overlapping subinterval. Its implementation uses small memory with minimal additional computational circuitry and represents a competitive design with respect to existing designs.

Citation Download Citation

Belle W. Y. Wei, Jun Cao, and Jie Cheng "New function interpolator using small memory", Proc. SPIE 3461, Advanced Signal Processing Algorithms, Architectures, and Implementations VIII, (2 October 1998); https://doi.org/10.1117/12.325712

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