Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Shape and Texture of Coarse Aggregate01:25

Shape and Texture of Coarse Aggregate

707
Aggregate shape is classified based on the relative sharpness or roundness of the edges and corners. This classification includes categories like rounded, angular, elongated, and flaky, each with specific characteristics. Rounded aggregates, fully shaped by attrition, are typical of river or seashore gravel, while angular aggregates, such as crushed rock, have well-defined edges. Aggregates that are elongated and flaky are less desirable, as they can reduce the workability and strength of...
707
Trial and Error and Algorithm01:12

Trial and Error and Algorithm

435
A problem-solving strategy is a plan of action used to find a solution. Different strategies have distinct action plans. Trial and error involves trying different solutions until one works. For instance, to fix a broken printer, you might check ink levels, ensure the paper tray isn't jammed, and verify the printer's connection to your laptop. This method can be time-consuming but is commonly used. Thomas Edison, for example, used trial and error to find a suitable filament for the light...
435
Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

358
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
358
Optimal Foraging00:48

Optimal Foraging

14.0K
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
14.0K
Optimization Problems01:26

Optimization Problems

85
Optimization problems often involve identifying maximum or minimum values under specific constraints. A well-known example is determining the longest horizontal pipe that can be moved around a right-angled corner, where a 3-meter-wide hallway meets a 2-meter-wide hallway. This scenario, common in architectural design and industrial transport, can be understood conceptually through geometric and trigonometric reasoning.To visualize the problem, consider the pipe as a straight line that touches...
85
Impression Management Techniques III: Aligning Actions01:29

Impression Management Techniques III: Aligning Actions

140
Aligning actions are communicative strategies individuals employ to maintain social harmony and preserve personal identity in the face of potential disruptions to social norms. These actions are particularly important in managing social impressions when one's behavior might be seen as inappropriate, incompetent, or morally questionable.Types of Aligning ActionsThe three principal types of aligning actions are disclaimers, accounts, and apologies.DisclaimersDisclaimers are preventive; they are...
140

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Tumor-associated macrophage-derived chemokine ligand 5 regulates the Hypoxia-inducible factor-1α/vascular endothelial growth factor signaling pathway to promote breast cancer invasion and migration.

CytoJournal·2026
Same author

Immune cells play a mediating role in the relationship between the gut microbiota and dementia: A Mendelian randomization study.

Innate immunity·2026
Same author

Construction of a mild cognitive impairment prediction model for Parkinson's disease patients on the basis of multimodal data.

NPJ Parkinson's disease·2025
Same author

Cancer-associated fibroblast-derived CCL5 enhanced aerobic glycolysis through upregulation of IP3R to promote breast cancer cell metastasis.

Acta histochemica·2025
Same author

Analysis of parkinson's disease patients with Gastrointestinal symptoms using structural and functional magnetic resonance imaging.

Brain imaging and behavior·2025
Same author

A Coarse Alignment Algorithm Based on Vector Reconstruction via Sage-Husa AKF for SINS on a Swaying Base.

Sensors (Basel, Switzerland)·2025
Same journal

RETRACTED: Zhang et al. A Novel Framework for Reconstruction and Imaging of Target Scattering Centers via Wide-Angle Incidence in Radar Networks. <i>Sensors</i> 2025, <i>25</i>, 6802.

Sensors (Basel, Switzerland)·2026
Same journal

Enhancing Unsupervised Multi-Source Domain Adaptation for Person Re-Identification via Mixture of Experts and Graph-Based Relation.

Sensors (Basel, Switzerland)·2026
Same journal

Development of an Instrumented Glove for Palmar Pressure Assessment in Kayakers.

Sensors (Basel, Switzerland)·2026
Same journal

Development and Experimental Validation of an Autonomous IoT-Based Monitoring System for Real-Time Water Quality Assessment in the Amazon River.

Sensors (Basel, Switzerland)·2026
Same journal

Semi-Supervised Adversarial Learning Framework for Controller Area Network Bus Intrusion Detection.

Sensors (Basel, Switzerland)·2026
Same journal

Smart Optimization Method for Safety Signs in Innovative Manufacturing Environments Integrating Industrial Field IoT Sensors and Knowledge Graphs.

Sensors (Basel, Switzerland)·2026
See all related articles

Related Experiment Video

Updated: Feb 15, 2026

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
11:53

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

Published on: December 9, 2012

13.5K

A Coarse-Alignment Method Based on the Optimal-REQUEST Algorithm.

Yongyun Zhu1,2, Tao Zhang3,4, Xiang Xu5,6

  • 1School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China. zhyy@seu.edu.cn.

Sensors (Basel, Switzerland)
|January 17, 2018
PubMed
Summary
This summary is machine-generated.

This study introduces an improved coarse-alignment method for strapdown inertial navigation systems using optimal attitude determination. The new optimal-REQUEST algorithm enhances convergence speed and stability for navigation systems.

Keywords:
attitude determinationcoarse alignmentoptimal-REQUESTstrapdown inertial navigation system (SINS)

More Related Videos

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm
06:53

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm

Published on: July 23, 2020

6.2K
Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures
07:05

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Published on: February 15, 2022

3.0K

Related Experiment Videos

Last Updated: Feb 15, 2026

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm
11:53

Spatial Multiobjective Optimization of Agricultural Conservation Practices using a SWAT Model and an Evolutionary Algorithm

Published on: December 9, 2012

13.5K
Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm
06:53

Management of Respiratory Motion Artefacts in 18F-fluorodeoxyglucose Positron Emission Tomography using an Amplitude-Based Optimal Respiratory Gating Algorithm

Published on: July 23, 2020

6.2K
Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures
07:05

Area-based Image Analysis Algorithm for Quantification of Macrophage-fibroblast Cocultures

Published on: February 15, 2022

3.0K

Area of Science:

  • Navigation Systems
  • Inertial Navigation
  • Attitude Determination

Background:

  • Strapdown inertial navigation systems (SINS) require accurate coarse alignment.
  • Noise in observation vectors from inertial sensors degrades alignment accuracy and convergence.
  • Traditional attitude determination methods face limitations in speed and accuracy due to noise.

Purpose of the Study:

  • To propose a novel coarse-alignment method for SINS based on attitude determination.
  • To address the limitations of existing methods by reducing noise impact on alignment.
  • To enhance the convergence rate and accuracy of the coarse alignment process.

Main Methods:

  • Developed an optimal attitude determination method named optimal-REQUEST.
  • Utilized observation vectors from inertial sensors for attitude determination.
  • Implemented an iterative method for determining the attitude quaternion and autonomously tuned filtering gain.

Main Results:

  • The optimal-REQUEST algorithm demonstrated a faster convergence rate compared to traditional methods.
  • Enhanced stability in coarse alignment was observed with the proposed method.
  • Simulation and turntable tests validated the superior performance of the optimal-REQUEST algorithm.

Conclusions:

  • The proposed optimal-REQUEST method offers significant improvements in convergence speed and alignment stability for SINS.
  • Autonomous tuning of filtering gain contributes to faster and more accurate attitude determination.
  • The method shows high applicability for practical navigation system implementations.