Calibration of a three-dimensional laser Doppler velocimeter in a land integrated navigation system

Wang Qi; Nie Xiaoming; Gao Chunfeng; Zhou Jian; Wei Guo; Long Xingwu

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Calibration of a three-dimensional laser Doppler velocimeter in a land integrated navigation system

机译：校准土地集成导航系统中的三维激光多普勒速度计

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In the land navigation field, a laser Doppler velocimeter (LDV), which is able to measure the speed of a carrier, can be combined with a strapdown inertial navigation system (SINS) to form an integrated navigation system. To realize the integrated navigation positioning of a free motion carrier on the ground accurately, this paper introduces a split-reuse three-dimensional (3D) LDV. For the error parameters during application, a Kalman filtering calibration method with the assistance of a differential global positioning system (DGPS) is put forward in this paper. Two groups of integrated navigation experiments are designed to validate the effectiveness of this method and the universality of the obtained parameters. The experimental results show that the calibration method proposed in this paper is effective and the 3D LDV after compensation can greatly improve the positioning accuracy of the integrated navigation. The maximum horizontal position errors of the two experiments calculated by the dead reckoning of the 3D LDV and the gyroscopes are 4.2 m and 2.9 m, and the maximum altitude errors are 0.8 m and 0.9 m, respectively. (C) 2018 Optical Society of America

机译：在陆地导航领域中，能够测量载体速度的激光多普勒速度计（LDV）可以与表带惯性导航系统（SINS）组合以形成集成导航系统。为了精确地实现自由运动载体在地面上的集成导航定位，本文介绍了一种分体式重复使用的三维（3D）LDV。对于应用过程中的错误参数，本文提出了一种Kalman滤波校准方法，其中提出了差分全球定位系统（DGPS）。两组集成导航实验旨在验证该方法的有效性和所获得的参数的普遍性。实验结果表明，本文提出的校准方法有效，补偿后的3D LDV可以大大提高集成导航的定位精度。由3D LDV和陀螺仪的死次数计算的两个实验的最大水平位置误差为4.2μm和2.9μm，最大高度误差分别为0.8米和0.9米。（c）2018年光学学会

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《Applied optics》 |2018年第29期|共7页
作者
Wang Qi; Nie Xiaoming; Gao Chunfeng; Zhou Jian; Wei Guo; Long Xingwu;
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Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

Natl Univ Def Technol Coll Adv Interdisciplinary Studies Changsha 410073 Hunan Peoples R China;

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Calibration of a three-dimensional laser Doppler velocimeter in a land integrated navigation system

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