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| 船用捷联惯性系统的IMU测量模型优化研究 | |
| 引用本文： | 王子磊,张滨,何昆鹏,余亚军.船用捷联惯性系统的IMU测量模型优化研究[J].舰船科学技术,2009,31(4). |
| 作者姓名： | 王子磊 张滨 何昆鹏 余亚军 |
| 作者单位： | 1. 海军装备部,北京,100841 2. 中国船舶工业集团公司船舶系统工程部,北京,100036 3. 哈尔滨工程大学,黑龙江,哈尔滨,150001 4. 武汉第二船舶设计研究所,湖北,武汉,430064 |
| 摘 要： | 为了提高捷联系统惯性测量组件(IMU)的测量精度,在建立完整的惯组测量数学模型的基础上,采用逐步回归法对测量模型的自变量选择进行最优化选择,寻优时用复相关系数R2作衡量测量方程优劣的指标.试验结果表明,在陀螺测量模型中,角速度二次交叉耦合项系数和与比力的二次项系数非常小,加速度计的测量模型中的加速度二次耦合项系数也很小,模型加入该组变量后,R2变化并不大,均可以忽略不计.采用逐步回归分析法从众多的影响因素中,挑选对响应变量贡献大的因素,从而建立了惯组最优化测量模型. |
| 关 键 词： | 捷联惯性系统 惯性测量单元 测量模型 |
Research on optimization model of marine strapdown inertial measurement unit |
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| WANG Zi-lei,ZHANG Bin,HE Kun-peng,SHE Ya-jun.Research on optimization model of marine strapdown inertial measurement unit[J].Ship Science and Technology,2009,31(4). | |
| Authors: | WANG Zi-lei ZHANG Bin HE Kun-peng SHE Ya-jun |
| Institution: | 1.Naval Equipment Department;Beijing 100841;China;2.Systems Engineering Research Institute of CSSC;Beijing 100036;3.Harbin Engineering University;Harbin 150001;4.Wuhan Second ship Design and Research Institute;Wuhan 430064;China |
| Abstract: | To improve measurement precision of strapdown system IMU,stepwise regression method was employed to select optimized independent variables for measurement model based on integrated inertial mathematic model. The measurement equation adopted multiple correlation coefficient R2 as superior-inferior index to find best solution. Experiments result indicate that the second cross coupling coefficient of angular velocity,the quadratic coefficient of specific force,acceleration second coupling coefficient in accele... |
| Keywords: | strapdown inertial nawigation system inertial measurement unit measurement model |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |