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捷联惯导系统中卡尔曼滤波的应用研究 被引量:5
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作者 王磊 汪洲 +1 位作者 任元 邢晓辰 《计算机测量与控制》 2017年第6期139-141,共3页
为提高捷联惯导系统初始对准精度,提出将卡尔曼滤波技术应用于系统初始精对准,用以估计系统的失准角和惯性误差;对卡尔曼滤波技术在捷联惯导系统中的应用进行分析,建立捷联惯导系统初始对准误差模型和卡尔曼滤波量测方程;分析不同条件... 为提高捷联惯导系统初始对准精度,提出将卡尔曼滤波技术应用于系统初始精对准,用以估计系统的失准角和惯性误差;对卡尔曼滤波技术在捷联惯导系统中的应用进行分析,建立捷联惯导系统初始对准误差模型和卡尔曼滤波量测方程;分析不同条件下不同滤波方法的滤波原理和滤波精度;在此基础上,提出一种将预测扩展卡尔曼滤波应用于逆向导航技术的思路,并进行了理论分析和捷联惯导系统自对准流程设计,为后续进一步深入开展惯导系统初始对准奠定基础。 展开更多
关键词 捷联惯导系统 初始对准 尔曼滤波 预测扩展卡尔曼滤波 逆向导航
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Application of extended Kalman filtering on aircraft pose prediction of image sequences 被引量:1
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作者 YANG Li-mei GUO Li-hong 《Optoelectronics Letters》 EI 2007年第1期69-72,共4页
In allusion to the character of monocular image sequences, a method based on extended Kalman filtering to predict the aircraft pose of image sequences is proposed. With α - β - γ stable state filtering technique, a... In allusion to the character of monocular image sequences, a method based on extended Kalman filtering to predict the aircraft pose of image sequences is proposed. With α - β - γ stable state filtering technique, a mathematics model is built to realize the prediction of aircraft pose of image sequences. In the model, not only the influence of noise during the image process is considered, but also the shortcoming of low precision in the constant velocity model is overcomed. The derivation of acceleration is considered as white noise. The predictive curve plotted with Matlab proves that the maximum of error of using this method is about 3’. So its precision is higher and error standard deviation is lower than those of the constant velocity model. 展开更多
关键词 图象序列 飞行器 姿态预测 扩展卡尔曼滤波 应用
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