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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.11
- 수록면
- 1,137 - 1,143 (7page)
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초록· 키워드
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This paper presents the FPGA implementation of efficient algorithms for approximating exponential function based on floating point format data. The Taylor-Maclaurin expansion as a conventional approximation method becomes inefficient since high order expansion is required for the large number to satisfy the approximation error. A format converter is designed to convert fixed data format to floating data format, and then the real number is separated into two fields, an integer field and an exponent field to separately perform mathematic operations. A new assembly command is designed and added to previously developed command set to refer the math table. To test the proposed algorithm, assembly program has been developed. The program is downloaded into the Altera DSP KIT W/STRATIX Ⅱ EP2S180N Board. Performances of the proposed method are compared with those of the Taylor-Maclaurin expansion.
목차
Abstract
Ⅰ. 서론
Ⅱ. Taylor-Maclaurin 확장
Ⅲ. Exponential Function Approximation Algorithm
Ⅳ. Hardware Implementation
Ⅴ. Experiment
Ⅵ. Conclusion
참고문헌
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - S. Jung / 2007 / Hardware implementation of real-time neural network controller with a DSP and an FPGA for nonlinear system / IEEE Trans. on Industrial Electronics 54 (1) : 265 ~ 271
2. [학술대회논문] - H. HU / 2006 / A floating-point coprocessor configured by a fpga in a digital platform based on fixed-point DSP for power electronics / International Power Electronics and Motion Control Conference
3. [학술지(정기간행물)] - J.-S. Kim / 2007 / Embedded hardware Implementation of an FPGA based nonlinear PID controller for the ROBOKER arm / Journal of Control, Automation, and Systems Engineering 13 (12) : 1153 ~ 1159
4. [학술지(정기간행물)] - K. Basterretxea / 2007 / An experimental study on nonlinear function computation for neural/fuzzy hardware design / IEEE Trans. on Neural Networks 18 (1) : 266 ~ 283
5. [학술대회논문] - L.-K. Wang / 2005 / Decimal floating-point square root using Newton-raphson iteration / Proc. of the 16th International Conference on ASAP’05
2. [학술대회논문] - H. HU / 2006 / A floating-point coprocessor configured by a fpga in a digital platform based on fixed-point DSP for power electronics / International Power Electronics and Motion Control Conference
3. [학술지(정기간행물)] - J.-S. Kim / 2007 / Embedded hardware Implementation of an FPGA based nonlinear PID controller for the ROBOKER arm / Journal of Control, Automation, and Systems Engineering 13 (12) : 1153 ~ 1159
4. [학술지(정기간행물)] - K. Basterretxea / 2007 / An experimental study on nonlinear function computation for neural/fuzzy hardware design / IEEE Trans. on Neural Networks 18 (1) : 266 ~ 283
5. [학술대회논문] - L.-K. Wang / 2005 / Decimal floating-point square root using Newton-raphson iteration / Proc. of the 16th International Conference on ASAP’05
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