| 基于时域相位思想的复自相关算法的研究 |
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| 引用本文： | 温宗周,吕钱.基于时域相位思想的复自相关算法的研究[J].黑龙江电子技术,2014(2):137-139. |
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| 作者姓名： | 温宗周 吕钱 |
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| 作者单位： | 西安工程大学电子信息学院,西安710048 |
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| 摘 要： | 根据ADCP流速测量的需要,研究了利用复自相关法估计回波信号多普勒频移的算法.通过对比FFT法和复自相关法在频率估计量的偏差和标准差,以及算法运算量,表明复自相关算法是频率估计算法的一个合适选择.
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| 关 键 词： | ADCP 多普勒频移 复相关 |
Based on temporal phase of complex self-correlation algorithm |
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| Authors: | WEN Zong-zhou LV Qian |
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| Affiliation: | (School of Electronics ＆ Information, Xi＇ an Polytechnic University, Xi＇ an 710048, China) |
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| Abstract: | According to the needs of ADCP velocity measurement, the echo signal is estimated based on the complex autocorrelation method in this paper, the algorithm of doppler shift is presented. By comparing the FFT method and autocorrelation method in frequency deviation and standard deviation of the estimator, computational complexity, and algorithm shows that complex self-correlation algorithm is a suitable choice of frequency estimation algorithm. |
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| Keywords: | ADCP Doppler shift complex correlation |
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