| 变时间延迟的分块递归最小二乘估计 |
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| 引用本文： | 尤肖虎,何振亚,崔国平.变时间延迟的分块递归最小二乘估计[J].东南大学学报(自然科学版),1988(4). |
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| 作者姓名： | 尤肖虎 何振亚 崔国平 |
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| 作者单位： | 南京工学院无线电工程系，南京工学院无线电工程系，南京工学院无线电工程系 |
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| 摘 要： | 时间延迟估计方法时常出现于目标方程和距离的检测问题中.通常时延估计问题的数学模型可描述为 x_1(t)=s(t)+n_1(t) (1) x_2(t)=αs(t-τ_1)+n_2(t) (2)此处n_2(t)和n_2(t)分别为两接收信号中的干扰噪声。一般假定s(t),n_1(t)和n_2(t)是联合平稳的,且互不相关。时间延迟估计的目标就是通过对观测信号x_1(t)和x_2(t)的分析处理估算(2)式中出现的因子τ_1。
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A Time-Variant Time Delay Estmator Using the Efficient Block Sequential Least-Squares Algorithm |
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| Yu Xiaohu,He Zhenya,Cui Guoping.A Time-Variant Time Delay Estmator Using the Efficient Block Sequential Least-Squares Algorithm[J].Journal of Southeast University(Natural Science Edition),1988(4). |
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| Authors: | Yu Xiaohu He Zhenya Cui Guoping |
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| Institution: | Department of Radio Engineering |
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| Abstract: | From the Wiener filtering point of view, this paper elucidates that the peekvalue-detection-based adaptive time delay estimation scheme is a real-time-processing version of Roth or Smoothed Coherence Transform (SCOT) approach, provided that band-limited stationary inputs are available. An efficient block sequential least-squars algorithm for time-variant time delay estimation is presented, which can offer much better tracking capacity and higher antinoise performance than the LMS one, without increase of the operational order. The detailed simulation results are provided for the purpose of comparison. |
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| Keywords: | information processing time delay estimation adaptive fast recursive-least-squares algorithm |
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