| 无陀螺捷联惯导系统角速度解算新方法 |
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| 引用本文： | 郝燕玲,刘志平.无陀螺捷联惯导系统角速度解算新方法[J].弹箭与制导学报,2009,29(4). |
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| 作者姓名： | 郝燕玲 刘志平 |
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| 作者单位： | 哈尔滨工程大学自动化学院,哈尔滨,150001 |
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| 摘 要： | 针对无陀螺捷联惯导系统解算载体角速度精度不高的系统瓶颈,提出了两种新的角速度解算方法.基于一种九加速度计配置方案,利用比力方程解算得到的角加速度项、角速度平方项和乘积项,构造了两种角速度的辅助算法.此法避免了由于积分导致误差积累的同时,也避免符号判断、数据开方的过程.仿真结果不仅表明了两种辅助算法的可行性,而且在解算精度方面也优于积分法和开方法.
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| 关 键 词： | 无陀螺捷联惯导系统 角速度 辅助算法 积分法 开方法 加速度计 |
New Methods for Angular Velocity Calculation of GFSINS |
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| HAO Yanling,LIU Zhiping.New Methods for Angular Velocity Calculation of GFSINS[J].Journal of Projectiles Rockets Missiles and Guidance,2009,29(4). |
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| Authors: | HAO Yanling LIU Zhiping |
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| Affiliation: | HAO Yanling,LIU Zhiping(College of Automation,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | To solve the problem of precision limitation of angular velocity calculation of gyro free strapdown inertial navigation system(GFSINS),two new angular velocity solutions were put forward.Based on a nine-accelerometer configuration scheme,two angular velocity assistant algorithms were built using the angle acceleration term,the square term and product term of angular velocity obtained from specific force equation.The algorithms avoid error accumulation caused by integral and the process of symbol judgment an... |
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| Keywords: | gyro free strapdown inertial navigation system angular velocity assistant algorithm integral algorithm extraction algorithm accelerometer |
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