Proceedings ArticleDOI
Novel two position ground alignment technique for Strapdown Inertial Navigation System
Sri Ramya B,Venugopal Reddy B,R S Chandrasekhary,Bhvs Narayana Murthy +3 more
- pp 94-98
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TLDR
In this paper, a two position alignment procedure on ground for Strapdown Inertial Navigation System (INS) is described, which makes use of accelerometers and gyroscopes measurements from a standalone INS without any external aiding to obtain higher accuracy of heading angle.Abstract:
The paper describes a novel two position alignment procedure on ground for Strapdown Inertial Navigation System. The method makes use of accelerometers and gyroscopes measurements from a standalone INS without any external aiding to obtain higher accuracy of heading angle. This technique mitigates the effect of down-gyroscope bias by solving simultaneous equations for the determination of azimuth. The accuracy is further improved by implementing a linear search to correct the azimuth dithered by the presence of gyroscope bias. The supporting simulation and experimental results are presented. The algorithm can be used in launch vehicle applications where there is a need for higher accuracy of azimuth prior to launch.read more
Citations
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Journal ArticleDOI
A high-accuracy two-position alignment inertial navigation system for lunar rovers aided by a star sensor with a calibration and positioning function
TL;DR: Good results show that the proposed two-position initialization method can accomplish alignment, positioning and calibration functions simultaneously, and has the potential for application in lunar rover navigation.
Patent
Launching vehicle high-reliability aligning control method
Liu Youmin,Zhao Huili,Zhang Shijun,Liang Caihai,Huang Yuanyuan,Li Zhichao,Wang Zhiyong,Liu Haiyang +7 more
TL;DR: In this article, a high-reliability aligning control method for a launching vehicle was proposed, in which the state information of an existing vehicle body of the launching vehicle, such as the transverse levelness and the longitudinal levelness under the ground coordinate system and an erection angle and a revolution angle under a vehicle body coordinate system, were used to calculate the data such as pitch angle of an equivalent launching frame under the Ground Coordinated Coordination System (GCS) and the yaw angle of the revolution platform under the GCS.
Proceedings ArticleDOI
Observability Analysis of a Miniature Inertial Measurement Unit on a Continuous Rotating Base
TL;DR: The results show that MIMUs cannot realize self-alignment because of their large heading errors in the static state, and this study provides a method and a theoretical basis for analyzing the observability of MIM Units and evaluating their performance.
References
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Book
Strapdown inertial navigation technology
David Titterton,John Weston +1 more
TL;DR: In this paper, the physical principles of inertial navigation, the associated growth of errors and their compensation, and their application in a broad range of applications are discussed, drawing current technological developments and providing an indication of potential future trends.
Book
Inertial navigation systems analysis
TL;DR: In this paper, a mechanization and error analysis of inertial navigation systems is presented, with an emphasis on terrestrial applications on or slightly above the earth's surface, and a unified error analysis technique is developed that is applicable to virtually all system configurations.
Book
Introduction to Modern Navigation Systems
TL;DR: Vectors and Matrices Coordinate Transformation between Orthonormal Frames Forms of the Transformation Matrix Earth and Navigation and Equations Implementation.
Journal ArticleDOI
Multiposition alignment of strapdown inertial navigation system
TL;DR: In this paper, the authors demonstrate that the stationary alignment of strapdown inertial navigation system (SDINS) can be improved by employing the multiposition/technique using an observability analysis, and they show that an optimal two position alignment not only satisfies complete observability conditions but also minimizes alignment errors.
Improved arithmetic of two-position fast initial alignment for sins using unscented kalman filter
TL;DR: In this article, an arithmetic of fast two-position initial alignment for Strapdown Inertial Navigation System (SINS) using Unscented Kalman Filter (UKF) is proposed to solve the initial alignment problems of SINS.