一种基于速度加比力匹配的传递对准时间延迟补偿算法 |
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引用本文: | 高伟,郭宇,程正生.一种基于速度加比力匹配的传递对准时间延迟补偿算法[J].应用科技,2014(5):53-56. |
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作者姓名: | 高伟 郭宇 程正生 |
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作者单位: | 哈尔滨工程大学自动化学院;中船重工第707研究所; |
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基金项目: | 国家自然科学基金资助项目(51379042) |
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摘 要: | 传递对准过程中,由于主惯导的传输延迟,子惯导解算信息与进行匹配的基准信息不能完全同步,有些情况下时间延迟影响较大。分析了时间延迟对速度加比力匹配传递对准算法的影响,并用扩增状态量的方法对该算法时间延迟进行建模和补偿。仿真结果表明,对准过程中当舰船处于匀速运动状态,时间延迟几乎不会影响对准性能;当舰船进行加速运动或S形机动运动时,时间延迟会严重影响对准性能,通过补偿可以有效地减少时间延迟对于该算法的影响。
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关 键 词: | 速度加比力匹配传递对准 时间延迟 惯导系统 卡尔曼滤波 补偿算法 |
A time-delay compensation algorithm for velocity and force transfer alignment |
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Institution: | GAO Wei, GUO Yu, CHENG Zhengsheng (1. College of Automation, Harbin Engineering University, Harbin 150001, China 2. 707 Research Institute of China Shipbuilding Industry Corporation,Jiujiang 332000, China) |
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Abstract: | Because of the transfer time delay of master inertial navigation system ( INS) during transfer alignment, the information computed by secondary inertial navigation system( SINS) does not synchronize completely with the basic matching information, and sometimes the effect of time-delay is relatively large.This paper analyses the time-delay effect on the velocity and force matching transfer alignment, and uses an extended state variable method to model and compensate the time-delay .The simulation results show that, in the case of constant velocity in align-ment, the time-delay’ s effect on velocity and force matching transfer alignment can be ignored.In the case of varia-ble acceleration and swerves in alignment, the time-delay could affect the accuracy of alignment seriously, and through compensation the proposed algorithm can reduce the time-delay effect on the algorithm efficiently. |
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Keywords: | matching transfer alignment time-delay inertial navigation system Kalman filter compensation algo-rithm |
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