Advanced Search
Volume 31 Issue 9
Dec.  2010
Turn off MathJax
Article Contents
Li Jiong, Wang Yan-fei. DFT Phase Estimation Algorithm and Noise Sensitive Frequency Region[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2099-2103. doi: 10.3724/SP.J.1146.2008.00539
Citation: Li Jiong, Wang Yan-fei. DFT Phase Estimation Algorithm and Noise Sensitive Frequency Region[J]. Journal of Electronics & Information Technology, 2009, 31(9): 2099-2103. doi: 10.3724/SP.J.1146.2008.00539

DFT Phase Estimation Algorithm and Noise Sensitive Frequency Region

doi: 10.3724/SP.J.1146.2008.00539 cstr: 32379.14.SP.J.1146.2008.00539
  • Received Date: 2008-04-30
  • Rev Recd Date: 2009-06-11
  • Publish Date: 2009-09-19
  • Using the principle of minimum variance, this paper computes the optimal weight coefficients for the phase estimation algorithm of the multi-frequencies signal, which is based on the phase weighted average of the partitions windowed-DFT. The variance formula of the estimator is derived. In addition, the issue of the DFT noise sensitive frequency region is precisely analyzed. Simulation results show the effectiveness of the algorithm and the rightness of the analysis.
  • loading
  • 周建明, 赵征, 费元春. 雷达测距系统中高精度相位测试方法的研究[J]. 电讯技术-研究与开发, 2003, (1): 26-30.Zhou Jian-ming, Zhao Zheng, and Fei Yuan-chun. Highprecision phase-measuring method for the radardistance-measuring system. Telecommunication Engineering,Research Development, 2003, (1): 26-30.[2]Maskell D L and Woods G S. Adaptive subsample delayestimation using a modified quadrature phase detector[J].IEEETransactions on Circuits Systems II: Express Briefs.2005,52(10):669-674[3]Agrez D. Spectrum analysis of waveform digitizers by IDFTand leakage minimization[J]. IEEE Transactions on IMTC,2005, 17(5):1717-1722.[4]Offelli C and Petri D. Interpolation techniques for real-timemulti-frequency waveform analysis[J].IEEE Transactions onInstrum. Meas.1990, 39(1):106-112[5]Agrez D. Improving phase estimation with leakageminimization[J].IEEE Transactions on Instrum Meas.2005,54(4):1347-1353[6]齐国清, 贾欣乐. 基于DFT 相位的正弦波频率和初相的高精度估计方法[J]. 电子学报, 2001, 29(9): 1164-1168.Qi Guo-qing and Jia Xin-le. High-accuracy frequency andphase estimation of single-tone phase of DFT. ActaElectronica Sinica, 2001, 29(9): 1164-1168.[7]Zhu L and Ding H. Phase regression approach for estimatingthe parameters of a noisy multi- frequency signal[J].IEEProc.-Vis. Image Signal Process.2004, 151(5):411-420[8]Kay S M. Modern Spectral Estimation Theory andApplication[M]. Englewood Cliffs, NJ: Prentice-Hall, 1988:53-58.[9]Harris F J. On the use of windows for harmonic analysis withthe discrete Fourier transform[J].Proc. IEEE.1978, 66(1):51-83[10]Offelli C and Petri D. The influence of windowing on theaccuracy of multifrequency signal parameters estimation[J].IEEE Transactions on Instrum. Meas.1992, 41(2):256-261[11]万星火. 概率论与数理统计[M]. 北京: 科学出版社, 2007, 8:45-46.Wan Xing-huo. Probability Theory and MathematicsStatistics[M]. Beijing: Science Press, 2007, 8: 45-46.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3434) PDF downloads(1214) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return