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前后向子分段相位差频率估计法

黄翔东 孟天伟 丁道贤 王兆华

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前后向子分段相位差频率估计法

黄翔东, 孟天伟, 丁道贤, 王兆华

A novel phase difference frequency estimator based on forward and backward sub-segmenting

Huang Xiang-Dong, Meng Tian-Wei, Ding Dao-Xian, Wang Zhao-Hua
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  • 为提高直接频率估计法的精度并推导出估计误差方差的闭合表达式,本文提出基于前后向子分段相位差的直接频率估计法. 该方法对样本的前向和后向两个子段做快速傅里叶变换,再提取这两个子段变换后的峰值谱相位差而获得频率估计. 本文证明了该估计器具有无偏性,并推导出其频率估计方差的闭合理论表达式. 仿真实验验证了该闭合表达式的正确性,故本文方法具有更高的测频精度和广泛的应用前景.
    In engineering applications, many measurements of physical quantities can be converted into the problems of frequency estimation. The current frequency estimators are mainly divided into two categories: iterative approaches and direct approaches. However, iterative approaches are not suitable for rapid physical measurement occasions due to its complicated process. But most of the direct approaches are the biased estimators, which are incapable of providing quantitative estimates of variance expression. To enhance the accuracy of the direct frequency estimator and derive the closed-form theoretic expression of the estimated error variance, this paper proposes a novel phase difference frequency estimator based on the forward and backward sub-segmenting. This estimator implements forward and backward fast Fourier transform (FFT) on the given samples separately, and then extracts the phase difference from the peak FFT bins of these two sub-segments to estimate the frequency. And it is emphasized that the proposed method is an unbiased frequency estimator, whose closed-form theoretic expression of the frequency estimated error variance is also derived. Moreover, simulation not only verifies the correctness of this closed-form expression but also proves that the proposed frequency estimator's mean square error is closer to the Cramer-Rao lower bound than that of apFFT/FFT phase difference estimator and Candan estimator. In conclusion, the proposed estimator has higher accuracy in measuring frequencies and has a wide application prospect.
    • 基金项目: 国家自然科学基金(批准号:61271069)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No. 61271069).
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    [2]

    Candan C 2011 IEEE Signal Processing Letters 18 351

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    Candan C 2013 IEEE Signal Processing Letters 20 913

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    Duarte M F, Baraniuk R G 2012 Applied and Computational Harmonic Analysis 1 111

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    Chen Zh, Zeng Y Ch, Fu Zh J 2008 Acta Phys. Sin. 57 46 (in Chinese) [陈争, 曾以成, 付志坚 2008 物理学报 57 46]

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    Cong Ch, Li X K, Song Y 2014 Acta Phys. Sin. 63 064301 (in Chinese) [丛超, 李秀坤, 宋扬 2014 物理学报 63 064301]

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    Cheng F, Wang Y Z 2012 Chin. Phys. B 21 070309

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    Bai Y F, Zhai Sh Q, Gao J R, Zhang J X 2011 Chin. Phys. B 20 034207

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    Qing H Y, Zhang Y N, Zhou Ch, Zhao Zh Y, Chen G 2014 Acta Phys. Sin. 63 094301 (in Chinese) [青海银, 张援农, 周晨, 赵正予, 陈罡 2014 物理学报 63 094301]

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    Zhang Y D, Amin M G, Himed B 2012 EURASIP Journal on Advances in Signal Processing 1 1

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    Ding Z, Yao X S, Liu T, Du Y, Liu K, Han Q, Meng Zh, Chen H X 2012 Optics Express 20 28319

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    Stoica P, Moses R L 2005 Spectral analysis of signals (Nanjing: Pearson/Prentice Hall Upper Saddle River)

    [13]

    Liao J R, Chen C M 2014 Signal Processing 94 108

    [14]

    Rife D, Boorstyn R 1974 IEEE Transactions on Information Theory 20 591

    [15]

    Abatzoglou T 1985 IEEE Transactions on Speech and Signal Processing 33 77

    [16]

    Chen K F, Wang J L, Zhang S W 2008 Journal of Vibration Engineering 21 314 (in Chinese) [陈奎孚, 王建立, 张森文2008振动工程学报 21 314]

    [17]

    Ding K, Zhong Sh C 2003 Chinese Journal of Electronics 31 142 (in Chinese) [丁康, 钟舜聪2003电子学报31 142]

    [18]

    Huang X D, Wang Zh H, Luo P, Lv W 2011 Chinese Journal of Electronics 39 172 (in Chinese) [黄翔东, 王兆华, 罗蓬, 吕卫 2011 电子学报 39 172]

    [19]

    Mao Y W, Tu Y Q, Xiao W, Yang H Y 2012 Journal of Vibration and Shock 31 112 (in Chinese) [毛育文, 涂亚庆, 肖玮, 杨辉跃 2012 振动与冲击 31 112]

    [20]

    Tan S W, Ren Zh L, Sun Ch C 2013 Systems Engineering and Electronics 35 34 (in Chinese) [谭思炜, 任志良, 孙常存 2013 系统工程与电子技术 35 34]

    [21]

    Zh X Y, Ding K 2001 Signal Processing. 17 91 (in Chinese) [朱小勇, 丁康 2001 信号处理 17 91]

    [22]

    Quinn B G 1997 IEEE Transactions on Signal Processing 45 814

    [23]

    Mckilliam R G, Quinn B G, Clarkson I V L, Moran B 2010 IEEE Transactions on Signal Processing 58 2953

    [24]

    Macleod M D 1998 IEEE Transactions on Signal Processing 46 141

    [25]

    Deng Zh M, Liu Y 2007 Chinese Journal of Electronics 35 104 (in Chinese) [邓振淼, 刘渝 2007 电子学报 35 104]

    [26]

    Aboutanios E, Mulgrew B 2005 IEEE Transactions on Signal Processing 53 1237

    [27]

    Quinn B G 1994 IEEE Transactions on Signal Processing 42 1264

    [28]

    Provencher S 2010 IEEE Transactions on Signal Processing 58 3879

    [29]

    Ding K, Jiang L Q 2001 Journal of Vibration Engineering 14 354 (in Chinese) [丁康, 江利旗2001振动工程学报 14 354]

    [30]

    Huang X D, Wang Zh H 2008 Journal of Tianjin University 41 815 (in Chinese) [黄翔东, 王兆华2008天津大学学报 41 815]

    [31]

    Qi G Q 2003 Journal of Data Acquisition & Processing 18 7 (in Chinese) [齐国清2003数据采集与处理 18 7]

    [32]

    Zhang T, Ren Zh L, Chen G, Sun Ch C 2011 Systems Engineering and Electronics 33 1468 (in Chinese) [张涛, 任志良, 陈光, 孙常存 2011 系统工程与电子技术 33 1468]

  • [1]

    Huang X D, Wang Z H 2008 Journal of Electronics Information Technology 30 293 (in Chinese) [黄翔东, 王兆华 2008 电子与信息学报 30 293]

    [2]

    Candan C 2011 IEEE Signal Processing Letters 18 351

    [3]

    Candan C 2013 IEEE Signal Processing Letters 20 913

    [4]

    Duarte M F, Baraniuk R G 2012 Applied and Computational Harmonic Analysis 1 111

    [5]

    Chen Zh, Zeng Y Ch, Fu Zh J 2008 Acta Phys. Sin. 57 46 (in Chinese) [陈争, 曾以成, 付志坚 2008 物理学报 57 46]

    [6]

    Cong Ch, Li X K, Song Y 2014 Acta Phys. Sin. 63 064301 (in Chinese) [丛超, 李秀坤, 宋扬 2014 物理学报 63 064301]

    [7]

    Cheng F, Wang Y Z 2012 Chin. Phys. B 21 070309

    [8]

    Bai Y F, Zhai Sh Q, Gao J R, Zhang J X 2011 Chin. Phys. B 20 034207

    [9]

    Qing H Y, Zhang Y N, Zhou Ch, Zhao Zh Y, Chen G 2014 Acta Phys. Sin. 63 094301 (in Chinese) [青海银, 张援农, 周晨, 赵正予, 陈罡 2014 物理学报 63 094301]

    [10]

    Zhang Y D, Amin M G, Himed B 2012 EURASIP Journal on Advances in Signal Processing 1 1

    [11]

    Ding Z, Yao X S, Liu T, Du Y, Liu K, Han Q, Meng Zh, Chen H X 2012 Optics Express 20 28319

    [12]

    Stoica P, Moses R L 2005 Spectral analysis of signals (Nanjing: Pearson/Prentice Hall Upper Saddle River)

    [13]

    Liao J R, Chen C M 2014 Signal Processing 94 108

    [14]

    Rife D, Boorstyn R 1974 IEEE Transactions on Information Theory 20 591

    [15]

    Abatzoglou T 1985 IEEE Transactions on Speech and Signal Processing 33 77

    [16]

    Chen K F, Wang J L, Zhang S W 2008 Journal of Vibration Engineering 21 314 (in Chinese) [陈奎孚, 王建立, 张森文2008振动工程学报 21 314]

    [17]

    Ding K, Zhong Sh C 2003 Chinese Journal of Electronics 31 142 (in Chinese) [丁康, 钟舜聪2003电子学报31 142]

    [18]

    Huang X D, Wang Zh H, Luo P, Lv W 2011 Chinese Journal of Electronics 39 172 (in Chinese) [黄翔东, 王兆华, 罗蓬, 吕卫 2011 电子学报 39 172]

    [19]

    Mao Y W, Tu Y Q, Xiao W, Yang H Y 2012 Journal of Vibration and Shock 31 112 (in Chinese) [毛育文, 涂亚庆, 肖玮, 杨辉跃 2012 振动与冲击 31 112]

    [20]

    Tan S W, Ren Zh L, Sun Ch C 2013 Systems Engineering and Electronics 35 34 (in Chinese) [谭思炜, 任志良, 孙常存 2013 系统工程与电子技术 35 34]

    [21]

    Zh X Y, Ding K 2001 Signal Processing. 17 91 (in Chinese) [朱小勇, 丁康 2001 信号处理 17 91]

    [22]

    Quinn B G 1997 IEEE Transactions on Signal Processing 45 814

    [23]

    Mckilliam R G, Quinn B G, Clarkson I V L, Moran B 2010 IEEE Transactions on Signal Processing 58 2953

    [24]

    Macleod M D 1998 IEEE Transactions on Signal Processing 46 141

    [25]

    Deng Zh M, Liu Y 2007 Chinese Journal of Electronics 35 104 (in Chinese) [邓振淼, 刘渝 2007 电子学报 35 104]

    [26]

    Aboutanios E, Mulgrew B 2005 IEEE Transactions on Signal Processing 53 1237

    [27]

    Quinn B G 1994 IEEE Transactions on Signal Processing 42 1264

    [28]

    Provencher S 2010 IEEE Transactions on Signal Processing 58 3879

    [29]

    Ding K, Jiang L Q 2001 Journal of Vibration Engineering 14 354 (in Chinese) [丁康, 江利旗2001振动工程学报 14 354]

    [30]

    Huang X D, Wang Zh H 2008 Journal of Tianjin University 41 815 (in Chinese) [黄翔东, 王兆华2008天津大学学报 41 815]

    [31]

    Qi G Q 2003 Journal of Data Acquisition & Processing 18 7 (in Chinese) [齐国清2003数据采集与处理 18 7]

    [32]

    Zhang T, Ren Zh L, Chen G, Sun Ch C 2011 Systems Engineering and Electronics 33 1468 (in Chinese) [张涛, 任志良, 陈光, 孙常存 2011 系统工程与电子技术 33 1468]

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出版历程
  • 收稿日期:  2014-04-11
  • 修回日期:  2014-05-30
  • 刊出日期:  2014-11-05

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