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ASME Press Select Proceedings
International Conference on Information Technology and Computer Science, 3rd (ITCS 2011)
Editor
V. E. Muhin,
V. E. Muhin
National Technical University of Ukraine
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ISBN:
9780791859742
No. of Pages:
656
Publisher:
ASME Press
Publication date:
2011
eBook Chapter
44 An Algorithm Improving Frequency Resolution Based on DDS Calibration
By
Yuanbin Cai
,
Yuanbin Cai
School of Optoelectronic Information,
University of Electronic Science and Technology of China
, Chengdu, Sichuan Province
, China
; [email protected]
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Ying Zhou
Ying Zhou
School of Optoelectronic Information,
University of Electronic Science and Technology of China
, Chengdu, Sichuan Province
, China
; [email protected]
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Page Count:
4
-
Published:2011
Citation
Cai, Y, & Zhou, Y. "An Algorithm Improving Frequency Resolution Based on DDS Calibration." International Conference on Information Technology and Computer Science, 3rd (ITCS 2011). Ed. Muhin, VE, & Hu, WB. ASME Press, 2011.
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To solve the conflicts among the sample points, processing time and frequency resolution while testing the micro-deviation of the resonance hydrogen sensor's resonance frequency, so a system focused in DSP and DDS (Direct Digital Synthesis) chips has been designed to calibrate and improve the frequency resolution by utilizing the high resolution characteristics of DDS signal frequency. Meanwhile, the theory for arithmetic is analyzed and the tests for arithmetic and sample points have been fulfilled. Proved by the experiments, the frequency resolution can be improved and the calculating time is reduced at the same time by the arithmetic.
Abstract
Keywords
Introduction
I. Arithmetic Theory
II. Result of Experimeatal Testing
III. Conclusion
Acknowledgment
References
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