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System reset for underwater strapdown inertial navigation system
Ocean Engineering, 2019Abstract Conventional system reset methods establish the relationship between measurements such as position or heading and gyro drifts by the Psi equation, following which, they iteratively calculate the gyro drifts. However, these methods have some limitations in practice.
Yueyang Ben +4 more
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Strapdown inertial navigation system of pendulum type
Mechanics of Solids, 2014We consider two implementations of an isotropic oscillator to be used in the construction of a strapdown inertial system of new type [1]. The first implementation is a contact-free suspension of an electrically conductive ball used in electrostatic gyros, and the second implementation is a 3D combination of elastic constraints holding a mass point.
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Gyrocompassing mode of the strapdown inertial navigation system
2017 IEEE 2nd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2017A gyrocompassing mode of the strapdown inertial navigation systems (SINS) was presented. SINS has been composed of Inertial Measurement Unit (IMU) and navigation computer. IMU consists of triad accelerometers, gyroscopes and a circuit of signal processing.
Xing Xiangming +2 more
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Basic principles of strapdown inertial navigation systems
2004The previous chapter has provided some insight into the basic measurements that are necessary for inertial navigation. For the purposes of the ensuing discussion, it is assumed that measurements of specific force and angular rate are available along and about axes which are mutually perpendicular.
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Aided strapdown inertial navigation for autonomous underwater vehicles
SPIE Proceedings, 2010This paper presents a navigation algorithm based on aided strapdown inertial navigation (INS) for an underwater autonomous underwater vehicle (AUV). The AUV is equipped with a long baseline (LBL) acoustic positioning system, acoustic Doppler current profiler (ADCP) and a depth sensor to aid the INS.
Yu Liu, X. Rong Li
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Cascade Compensation Algorithm for Strapdown Inertial Navigation System
Advanced Materials Research, 2011The cascade compensation algorithm for no damp strapdown inertial navigation system (SINS) is designed based on control model and error characteristic of SINS level-loop. According to stability and frequency characteristic analysis for SINS level-loop, a compensation network, which is chosen to alter either the roots location or the frequency response ...
Feng Zha, Jiang Ning Xu, Bai Qing Hu
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A New Mathematical Formulation for Strapdown Inertial Navigation
IEEE Transactions on Aerospace and Electronic Systems, 1971A differential equation is developed for the orientation vector relating the body frame to a chosen reference frame. The time derivative of this vector is the sum of the inertially measurable angular velocity vector and of the inertially nonmeasurable noncommutativity rate vector.
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Parking correction of strapdown inertial navigation system
International Journal of Industrial and Systems Engineering, 2021Yan Zhang, Jianzhong Wang
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Initial alignment for strapdown inertial navigation system based on inertial frame
2009 International Conference on Mechatronics and Automation, 2009A initial alignment algorithm in the inertial frame based on the alignment application of Kalman filter was presented. State and observation equations of strapdown inertial navigation system (SINS) are established using Kalman filter by the gravity vector projected in the inertial frame, and the initial alignment of the SINS based on the inertial frame
Feng Sun +4 more
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The State of Strapdown Inertial Guidance and Navigation
Navigation, 1971The prospect of simplifying inertial navigation systems by strapping the sensors directly to the vehicle, as commonly done in attitude control systems, has continued to intrigue investigators. Interest has persisted through the many years that have seen the gimballed, inertially stabilized platform reach maturity in military applications, in space ...
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