Study on Quasi-Synchronous DFT Algorithm

Feng Pan; Qiang Song; Rui Min Chen; Yong Xiao; Wei Ming Sun; Wei Zhao; Zhe Fei Ma

doi:10.4028/www.scientific.net/AMM.220-223.2257

Paper Titles

Research of Electronic Nose Pattern Recognition Algorithm Based on SVM
p.2244

A Novel Baseline Correction Algorithm
p.2248

Application of Improved Wavelet Threshold Method in SEMG De-Noising Processing
p.2253

Study on Quasi-Synchronous DFT Algorithm
p.2257

Rational Function Functional Networks Based on Function Approximation
p.2264

Retarded Integral Inequality and its Application in Retarded Differential Equation
p.2269

An Algorithm for Salt and Pepper Noise Removal Based on Information Entropy
p.2273

Study on Data Fusion Algorithm in High Dynamic GPS/INS Integrated Navigation System
p.2280

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 220-223Study on Quasi-Synchronous DFT Algorithm

Study on Quasi-Synchronous DFT Algorithm

Abstract:

The principle of quasi-synchronous discrete fourier transform (DFT) algorithm was introduced and the simulation on the algorithm was carried out. The quasi-synchronous DFT algorithm is independent of the first sample point and it is able to start sampling at any moment. The maximum relative amplitude error and phase error of the algorithm are 0.05 % and 5.4° when the frequency of the signal is between 49.5 Hz and 50.5 Hz. The accuracy of quasi-synchronous DFT algorithm can be improved by scores of times than that of DFT algorithm.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 220-223)

Pages:

2257-2263

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.220-223.2257

Citation:

Cite this paper

Online since:

November 2012

Authors:

Feng Pan, Qiang Song, Rui Min Chen, Yong Xiao, Wei Ming Sun, Wei Zhao, Zhe Fei Ma

Keywords:

First Sample Point, Frequency Offset, Quasi-Synchronous DFT Algorithm, Simulation

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] Xianzhong Dai, R. GRETSH, Quasi-synchronous Sampling Algorithm and Its Application, IEEE Trans. Instrum. Meas. 43 (1994) 204-209.

DOI: 10.1109/19.293421

Google Scholar

[2] Fuying Li, Hengfu Wang, Rongshang Ge, Realization of High Precision Harmonics Analysis with Quasi-synchronous DFT Arithmetic, Journal of Tsinghua University(Sci&Tech) 39 (1999), 47-50(in Chinese).

Google Scholar

[3] Xianzhong Dai, Tongyi Tang, R. GRETSH, Quasi-synchronous sampling algorithm and its applications II High accurate spectrum analysis of periodic signal, IEEE Instrumentation and Measurement Technology Conference, Irvine, CA, USA, (1993) 94-98.

DOI: 10.1109/imtc.1993.382673

Google Scholar

[4] Xianzhong Dai, Designed Plan for Improving Accuracy of Quasi-synchronous Sampling Harmonics Analysis, Chinese Journal of Scientific Instrument 13 (1992), 16-23(in Chinese).

Google Scholar

[5] Xianzhong Dai, Tongyi Tang, R. GRETSCH, Quasi-synchronous sampling algorithm and its applications I Principle and measurement of "average" values of periodic signal, IEEE Instrumentation and Measurement Technology Conference, Irvine, CA, USA, (1993), 88-93.

DOI: 10.1109/imtc.1993.382674

Google Scholar