| 高速飞行环境下卫星导航信息滞后补偿方法 |
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| 引用本文： | 杨波,王跃钢,徐洪涛.高速飞行环境下卫星导航信息滞后补偿方法[J].中国惯性技术学报,2011,19(3). |
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| 作者姓名： | 杨波 王跃钢 徐洪涛 |
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| 作者单位： | 第二炮兵工程学院自动控制系,西安,710025 |
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| 摘 要： | 为了解决高速飞行环境下卫星导航信息滞后严重影响导航精度和性能的问题,研究了一种基于曲线拟合技术的滞后补偿方法.针对高速飞行环境下导航参数的变化情况,分别采用抛物线和三次抛物线来拟合卫星导航系统的输出信息,推导获得抛物线和三次抛物线的各项系数,进而研究获得卫星导航信息滞后的补偿算法.仿真结果表明,尽管卫星导航输出的滞后时间长达0.8 s,采用该滞后补偿方法可以使捷联惯导/卫星组合导航的水平位置精度达到±0.6”,高度精度达到±18.9 m,速度精度达到士0.15m/s.因此该方法能够有效补偿卫星导航系统的输出滞后,具有良好的工程应用前景.
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| 关 键 词： | 高速飞行 卫星导航 滞后补偿 曲线拟合 抛物线 |
Compensation method for satellite navigation information delay in high-speed flight environment |
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| YANG Bo,WANG Yue-gang,XU Hong-tao.Compensation method for satellite navigation information delay in high-speed flight environment[J].Journal of Chinese Inertial Technology,2011,19(3). |
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| Authors: | YANG Bo WANG Yue-gang XU Hong-tao |
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| Institution: | YANG Bo,WANG Yue-gang,XU Hong-tao(Department of Automation,The Second Artillery Engineering College,Xi'an 710025,China) |
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| Abstract: | In order to solve the problem that the delay of satellite navigation information seriously influences the navigation precision and performance in high-speed flight environment,a method for compensating the delay is studied by the curve fitting technology.According to the change features of navigation parameters in high-speed flight environment,the parabola and cubic parabola are taken to fit the output information of satellite navigation system,and the polynomial coefficients of the parabola and cubic parab... |
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| Keywords: | high-speed flight satellite navigation delay compensation curve fitting parabola |
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