QIU Tianshuang   

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Paper Publications

Title of Paper:基于鲁棒性时间延迟估计的激光测距算法

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Date of Publication:2012-07-23

Page Number:204-204

Key Words:signal processing;laser ranging;robust time delav estimation;Alpha stable distribution;fractional lower order statistics

Abstract:  实际中激光测距回波信号常常含有脉冲性噪声,且具有较低的信噪比,这使得传统的激光测距算法性能衰退。本文提出了一种鲁棒性时间延迟估计算法用于激光调制信号测距,该算法用AIpha稳定分布建模信号噪声,采用分数低阶统计量求取回波信号与发射信号之间的时间延迟信息,从而得到距离信息。理论分析和计算机仿真实验结果表明,该算法既可以用于回波信号含有高斯噪声的情况,也可以用于还有脉冲性噪声的情况,有较好的实际应用价值。

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