Results 161 to 170 of about 4,457,973 (186)

Development program for a general purpose computer and strapdown inertial measurement unit

AIAA Guidance, Control, and Flight Mechanics Conference, 1969
A comparison between strapdown and gimbal navigation systems suggests t h a t platforms have been prefer red for h i s t o r i c a l r a t h e r than t echn ica l reasons. The r e s u l t s from van tests i n d i c a t e t h e feasi b i l i t y of a strapdown system using a s u i t a b l e general-purpose computer, provided t h e bandwidth and dynamic ...
J. MATTHEWS, G. TAYLOR
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Calibration of fiber-optic gyros within strapdown inertial measurement units

Gyroscopy and Navigation, 2012
The paper focuses on test bench calibration of fiber-optic gyros with linear output within strapdown inertial measurement units of various designs. The required calibration accuracy and rate table performance are defined.
D. V. Volynskii, A. A. Odintsov, E. V. Dranitsyna, A. A. Untilov   +3 more
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Condition monitoring and information management for skew redundant strapdown inertial measurement unit

2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018
This paper presents a new algorithm for condition monitoring and information management in skew strapdown inertial measurement unit. Information management includes fault detection, isolation and reconfiguration. First, Considering the error coefficients of gyros, a unified model is built for redundancy configuration.
Weizheng Zhou, Xuefeng Li, Saijun Zhao
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An Observability Analysis of a GPS-Aided Geodetic Inertial Strapdown Measurement Unit

1991
A widely used tool to combine data of different measurement devices in real time is the Kalman-Filter-Technique. To guarantee a uniformly asymptotically globally stable filter, the system model upon which the Kalman filter is based has to be both observable and controllable.
Margit Bölcsvölgyi-Bán, Dietrich Schröder   +1 more
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Transferring the Bearing Using a Strapdown Inertial Measurement Unit

1993
Of all the various possibilities of using an inertial measurement unit (IMU) in surveying engineering only the determination of a reference bearing and its transfer is focussed upon in this paper. Strapdown-systems differ from the conventional gimballed platform-configuration by the use of the sensors which are sensitive to a rotation of the IMU.
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Calibration of in-run drifts of strapdown inertial navigation system with uniaxial modulation rotation of measurement unit

Gyroscopy and Navigation, 2017
Errors of a strapdown inertial navigation system (INS) based on navigation grade fiber-optic gyros (FOG) are studied, with the INS measurement unit performing modulation rotation about the axis orthogonal to the vehicle deck. The main focus is made on the problem of reducing the time of gyro in-run drifts calibration, using the GNSS data when the INS ...
G.I. Emel’yantsev, A.P. Stepanov, B.A. Blazhnov   +2 more
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FDI and Navigation integration algorithm design for skew redundant strapdown inertial measurement unit

2018 IEEE CSAA Guidance, Navigation and Control Conference (CGNCC), 2018
Skew Redundant Inertial Measurement Unit (SRIMU) is used to ensure that flight vehicle can achieve high reliability and accuracy. There are two essential discussions for SRIMU, one is Fault Detection and Isolation (FDI), and the other is how to get more accurate navigation parameters. Currently, two parts are investigated separately.
Weizheng Zhou, Xuefeng Li, Saijun Zhao, Jiansheng Tao   +3 more
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Isotropic Design Method of Suspension System of Dithered RLG Strapdown Inertial Measurement Unit

Advanced Materials Research, 2014
The dithered ring laser gyro (DRLG) strapdown inertial navigation system (SINS) is widely used in many applications, including military and commercial systems for the advantages such as high accuracy, wide dynamic range and bandwidth, outstanding scale factor stability over temperature, compactness and lower cost.
Geng Li, Guo Wei, Yuan Pin Xie, Peng Fei Zhang, Xu Dong Yu, Xing Wu Long   +5 more
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Estimating the Accuracy Parameters of Sensors in a Strapdown Inertial Measurement Unit with the Use of a Relatively Coarse Turntable

Gyroscopy and Navigation, 2019
The technique for calibration of sensors in a strapdown inertial measurement unit on a relatively coarse (1°–2°) turntable are discussed. The proposed technique is based both on direct and indirect methods. Calibration errors are estimated analytically and, also, by means of mathematical simulation.
L. V. Vodicheva, Yu. V. Parysheva
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Optimization Design and Calibration of Installation Error Coefficients for Gyroscope-Free Strapdown Inertial Measurement Unit

2006 International Conference on Mechatronics and Automation, 2006
A new gyroscope-free inertial measurement technique using nine linear accelerometers is presented in this paper. Based on the characteristic that the calculation error is divergent in time, the calculative method is optimized. With proposed iterative method, the solution of difference equations is corrected; accumulative errors and the shift of the ...
Mu shu-zhi, Bu xiong-zhu, Li yong-xin
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