Results 31 to 40 of about 28,117 (261)

Integrated Navigation Method of Aerospace Vehicle Based on Rank Statistics

open access: yesInternational Journal of Aerospace Engineering, Volume 2023, Issue 1, 2023., 2023
The large dynamic and high‐speed flight of aerospace vehicle will bring unpredictable conditions to its navigation system, resulting in that its system random noise probability distribution will no longer meet the preconditions of Gaussian distribution preset by the existing filter algorithm, thus reducing the accuracy of the navigation system.
Jun Kang   +4 more
wiley   +1 more source

High‐Precision Positioning Simulation and Experimental Research of Special Operation Vehicles Based on Network RTK

open access: yesComputational Intelligence and Neuroscience, Volume 2023, Issue 1, 2023., 2023
In terms of driverless systems, high‐precision positioning technology is one among the critical aspects of driverless cars to achieve driverlessness. This study analyzed the working principles of GNSS (global navigation satellite system) and SINS (strapdown inertial navigation system) and elaborated the principles of the least square method and LAMBDA ...
Zhongyi Zhao   +3 more
wiley   +1 more source

Research on positioning method of underground robot based on strapdown inertial navigation and odometer

open access: yesGong-kuang zidonghua, 2019
In order to solve problems of difficult positioning and low precision in positioning method of underground mobile robots, a positioning method of underground robot based on strapdown inertial navigation and odometer was proposed.
MA Hongwei   +3 more
doaj   +1 more source

Improving the speed of initial alignment for marine strapdown inertial navigation systems using heading control signal feedback in extended Kalman filter

open access: yesInternational Journal of Advanced Robotic Systems, 2020
In this article, a method was proposed for strapdown inertial navigation systems initial alignment by drawing on the conventional alignment method for stable platform navigation systems.
Hossein Rahimi, Amir Ali Nikkhah
doaj   +1 more source

Distributed Strapdown Inertial Navigation System Error and Inertial Sensory Bias Compensation

open access: yesMajlesi Journal of Electrical Engineering
In this paper, error dynamic model of Strapdown inertial navigation system (SINS) is employed for error compensation of Strapdown algorithm. Perfect visual sensor data is fused with inertial sensors to produce deviation vectors as noisy measurement ...
Nargess Sadeghzadeh Nokhodberiz   +1 more
doaj   +1 more source

[Retracted] Motion Control and Tracking Control of UAV Based on Adaptive Sensor

open access: yesJournal of Sensors, Volume 2023, Issue 1, 2023., 2023
In order to meet the requirements of UAV motion control and tracking control, an adaptive sensor‐based technology is proposed. The main content of the technology is based on the mathematical model of the adaptive sensor, through the quaternion attitude update model, using nonlinear attitude SVDCK filtering and dynamic adaptive adjustment factors and ...
Xin Zhao   +5 more
wiley   +1 more source

A tightly‐coupled compressed‐state constraint Kalman Filter for integrated visual‐inertial‐Global Navigation Satellite System navigation in GNSS‐Degraded environments

open access: yesIET Radar, Sonar &Navigation, Volume 16, Issue 8, Page 1344-1363, August 2022., 2022
Abstract Efficient multi‐sensor fusion is crucial to provide accurate pose estimates for navigating various next‐generation autonomous vehicles such as self‐driving cars, personal air vehicles, urban air mobilities, and electronic vertical take‐off and landing aircraft with respect to a unified global reference frame.
Yu Dam Lee, La Woo Kim, Hyung Keun Lee
wiley   +1 more source

Shearer position and attitude adjustment based on strapdown inertial navigation system

open access: yesGong-kuang zidonghua, 2017
For problems of inaccurate shearer position and attitude adjustment, a shearer position and attitude adjustment method based on strapdown inertial navigation system was researched on the ground with slowly varied angle.
ZHANG Qing   +4 more
doaj   +1 more source

A new polar alignment algorithm based on the Huber estimation filter with the aid of BeiDou Navigation Satellite System

open access: yesInternational Journal of Distributed Sensor Networks, 2021
For aircrafts equipped with BeiDou Navigation Satellite System/Strapdown Inertial Navigation System integrated navigation system, BeiDou Navigation Satellite System information can be used to achieve autonomous alignment.
Bin Zhao   +4 more
doaj   +1 more source

An Alignment Method for Strapdown Inertial Navigation Systems Assisted by Doppler Radar on a Vehicle-Borne Moving Base

open access: yesSensors, 2019
In this study, we investigated a novel method for high-accuracy autonomous alignment of a strapdown inertial navigation system assisted by Doppler radar on a vehicle-borne moving base, which effectively avoids the measurement errors caused by wheel-slip ...
Bo Yang   +3 more
doaj   +1 more source

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