Study on Decoupling Algorithm of Twelve-Accelerometer Array

秦丽; 马艳海; 杨运良; 王红亮

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Study on Decoupling Algorithm of Twelve-Accelerometer Array

更新时间：2026-09-14

- Study on Decoupling Algorithm of Twelve-Accelerometer Array
- 十二加速度计阵列解耦算法研究
- Issue 4, Pages: 376-379(2008)
- 作者机构：
  
  1. 中北大学电子测试技术国家重点实验室
  2. 电子与计算机科学技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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秦丽, 马艳海, 杨运良, et al. Study on Decoupling Algorithm of Twelve-Accelerometer Array[J]. 2008, (4): 376-379.
DOI：

秦丽, 马艳海, 杨运良, et al. Study on Decoupling Algorithm of Twelve-Accelerometer Array[J]. 2008, (4): 376-379. DOI：

摘要

在无陀螺惯性测量组合中

加速度计敏感轴偏差使得加速度计能敏感到垂直于敏感轴方向上的加速度

由此产生的耦合效应是导致加速度计输出误差增大的重要因素.针对敏感轴偏差产生的耦合效应提出了相应的解耦算法

并制作了十二加速度计惯性测量组合模型及高精度同步数据采集实验系统.在三轴转台上进行的仿真实验结果表明了解耦算法的有效性.经过解耦

加速度计输出精度达到选用加速度计的分辨率级精度-1-0 3g

比未解耦的输出提高了2个数量级

从源头上降低了无陀螺惯性测量组合的误差.

Abstract

In non-gyro inertial measurement unit

the coupling effect caused by accelerators' sensing axis misalignment can sense the acceleration of vertical direction

which increases the accelerometers' output error.To solve the problem

a decoupling algorithm was proposed and a 12-accelerometer inertial measurement unit and a high-precision synchronous signal acquisition system was created.The simulation experiment results based on tri-axial rotating table illustrate that the decoupling algorithm is valid.The accelerometers' output precision after decoupling can be up to the selected inertial device's resolution precision-10-3 g

which is increased about 100 times.The non-gyro inertial measurement unit's error can be decreased from initial source.

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references

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Xiao Weiguang,Ding Mingli,Wang Qi.Application of total least square algorithm in static decoupling of ngmimu[J].Chinese Journal of Aeronautics,2004,17(4):224-228.

王劲松,王祁,孙圣和.加速度计的交叉耦合对无陀螺惯性测量组合影响的研究[J].中国惯性技术学报,2003,11(1):29-33.Wang Jinsong,Wang Qi,Sun Shenghe.Effect of cross-coupling coefficient of accelerometer ongyros-free inertialmeasurement unit[J].Journal of Chinese Inertial Technology,2003,11(1):29-33.(in Chinese)

周红进,许江宁,刘睿.基于加速度计的无陀螺惯性导航系统设计与仿真[J].系统工程与电子技术,2007,29(7):1209-1212.Zhou Hongjin,Xu Jiangning,Liu Rui.Design and simulation of accelerometer based gyro-free inertial navigationsystem[J].Systems Engineering and Electronics,2007,29(7):1209-1212.(in Chinese)

许卫星,秦丽,余靖娜,等.无陀螺捷联惯性测试研究[J].弹箭与指导学报,2006,26(1):14-16.Xu Weixing,Qin Li,Yu Jingna,et al.Testing research on non-gyro inertial measurement unit[J].Journal ofProjectiles,Rockets,Missiles and Guidance,2006,26(1):14-16.(in Chinese)

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