Results 81 to 90 of about 703 (158)

Optimization of a strapdown inertial navigation system

, 2009
The focus of this thesis is to find 21 error parameters in a Strapdown Inertial Navigation System (SINS) that would minimize objective functions or error functions to increase accuracy utilizing an optimization algorithm.
Ruiz, Mario
core  

A Fault-Tolerant Polar Grid SINS/DVL/USBL Integrated Navigation Algorithm Based on the Centralized Filter and Relative Position Measurement

Sensors, 2019
Navigation is a precondition for ocean space vehicles to work safely in polar regions. The traditional polar algorithms employ the grid strapdown inertial navigation system (SINS) as the backbone and Doppler velocity log (DVL) output velocity as ...
Lin Zhao, Yingyao Kang, Jianhua Cheng, Mouyan Wu   +3 more
doaj   +1 more source

A Novel Grid SINS/DVL Integrated Navigation Algorithm for Marine Application

Sensors, 2018
Integrated navigation algorithms under the grid frame have been proposed based on the Kalman filter (KF) to solve the problem of navigation in some special regions.
Yingyao Kang, Lin Zhao, Jianhua Cheng, Mouyan Wu, Xiaoliang Fan   +4 more
doaj   +1 more source

Optimizing AUV Navigation Using Factor Graphs with Side-Scan Sonar Integration

Journal of Marine Science and Engineering
For seabed mapping, the prevalence of autonomous underwater vehicles (AUVs) employing side-scan sonar (SSS) necessitates robust navigation solutions. However, the positioning errors of traditional strapdown inertial navigation system (SINS) and Doppler ...
Lin Zhang, Yanbin Gao, Lianwu Guan
doaj   +1 more source

Research on Positioning Technology in GNSS-Denied Environments Based on At-LSTM

Journal of Harbin University of Science and Technology
To address the issue of decreased positioning accuracy in GNSS-denied environments for the Global Navigation Satellite System/ Strapdown Inertial Navigation System (GNSS / SINS) integrated navigation system, an integrated navigation system assisted by
SUN Bin, ZHOU Chongfu, PI Zhongchao, ZHANG Jiabiao, SHEN Feng   +4 more
doaj   +1 more source

Single-beacon range-constrained tightly coupled SINS/DVL navigation method for dam inspection underwater vehicles

Applied Ocean Research
To mitigate navigation accuracy degradation in underwater vehicles operating in dam inspection environments characterized by distinct structural boundaries, this paper proposes a tightly coupled Strapdown Inertial Navigation System (SINS)/Doppler ...
Zhuoqing Shao, Yushan Sun, Yichuan Ran, Zaiming Geng, Xinyu Li, Zhe Li   +5 more
doaj   +1 more source

Solving the Autonomous Initial Navigation Task for Strapdown Inertial Navigation System on the Perturbed Basis Using Rodriguez—Hamilton Parameters

The paper attempts to solve the initial orientation task for perturbed-basis strapdown inertial navigation systems (SINS) of aircraft with most general assumptions about the character of the angular motion of the basis and the accelerations perturbing ...
Pogorelov V.A., Sokolov S.V., Shatalov A.B.   +2 more
core   +1 more source

Random weighting method for estimation of error characteristics in SINS/GPS/SAR integrated navigation system

, 2015
This paper presents a new random weighting method to estimate error characteristics in SINS/GPS/SAR (Strapdown Inertial Navigation System/Global Positioning System/Synthetic Aperture Radar) integrated navigation system.
Shesheng Gao (19970619), Yongmin Zhong (18031702), Li Xue (583505), Chengfan Gu (19010417)   +3 more
core  

An Augmented Strapdown Inertial Navigation System using Jerk and Jounce of Motion for a Flying Robot

, 2017
This paper offers an algorithm for enhancement of positioning accuracy of a quad-rotor flying robot, based on jerk and jounce of motion. The suggested method utilises the first and second numerical derivatives of the vehicle's acceleration and augments ...
Milad Bayat, MA Amiri Atashgah
core   +1 more source

Adaptive SINS/ANS/GNSS for air-launch space launcher: Algorithm design and performance analysis

, 2007
The paper deals with the development of the multirate information fusion algorithm for the integrated navigation system. The system is designed for air-launch space launcher used within the conversion programs for non-military space exploration.
Shchipitsyn A., Shtessel Y., Fokin L.
core