Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Design Example: Measuring Distance Between Two Points with Obstructions01:10

Design Example: Measuring Distance Between Two Points with Obstructions

38
When measuring distances in areas with physical obstructions, such as a lake in a field, surveyors must employ techniques to calculate accurate lengths without direct line measurements. One effective method is the offset technique, which allows for precise distance estimation over inaccessible stretches.In this scenario, a surveyor must measure a side of an area that crosses a lake. Since the measuring tape cannot span the lake, the surveyor begins by establishing a baseline that aligns with...
38
Azimuths and Bearings01:19

Azimuths and Bearings

119
Azimuths and bearings are essential concepts in surveying, providing methods to express the direction of a line relative to a meridian. Azimuths refer to the clockwise angle measured from the north end of a reference meridian to the given line, ranging from zero to 360 degrees. This method gives a comprehensive directional reference within a full 360-degree circle, making it a straightforward way to communicate direction in various fields, including navigation, cartography, and...
119
Design Example: Marking Boundaries of a Site Using a Compass01:12

Design Example: Marking Boundaries of a Site Using a Compass

39
Marking site boundaries using a compass is a precise surveying technique that ensures the accuracy of boundary delineation. The process begins by using provided site details, including the bearings and lengths of each boundary line. The initial step involves calculating latitudes and departures for all sides of the site. This computation verifies that the traverse is free of errors, ensuring a closed and accurate boundary.The process starts at a known point, such as Point A, which is often...
39
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device01:30

Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

30
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
30
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

45
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
45
Common Leveling Mistakes and Errors01:17

Common Leveling Mistakes and Errors

72
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
72

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A Robust INS/USBL/DVL Integrated Navigation Algorithm Using Graph Optimization.

Sensors (Basel, Switzerland)·2023
Same author

A physically transient form of silicon electronics.

Science (New York, N.Y.)·2012
Same author

An ab initio investigation of fluorobromo carbene.

The journal of physical chemistry. A·2012
Same author

[Comparison and thinking on literatures of low back pain treated with acupuncture-moxibustion published in foreign SCI journals and domestic core journals].

Zhongguo zhen jiu = Chinese acupuncture & moxibustion·2012
Same author

[Effect of ceramide on GSTA1 in Caco-2 cells].

Yao xue xue bao = Acta pharmaceutica Sinica·2012
Same author

Association of AFF1 rs340630 and AFF3 rs10865035 polymorphisms with systemic lupus erythematosus in a Chinese population.

Immunogenetics·2012
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
查看所有相关文章

相关实验视频

Updated: Jul 1, 2025

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.3K

一种利用轴承测量的水下来源定位方法.

Peijuan Li1, Yiting Liu2, Tingwu Yan1

  • 1Industrial Center, Nanjing Institute of Technology, Nanjing 211167, China.

Sensors (Basel, Switzerland)
|March 13, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的水下声学定位方法,仅使用轴承测量,消除了对范围信息的需求. 这种新的方法实现了高定位精度,与理论限制相匹配.

关键词:
CRLB CRLB是指CRLB是指CRLB是指CRLB.在SDP中,SDP是SDP.这里是USB USBL.轴承的测量方法偏见补偿偏见的补偿源代码本地化 源代码本地化

更多相关视频

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
09:19

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

448
A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry
06:36

A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry

Published on: April 15, 2021

3.7K

相关实验视频

Last Updated: Jul 1, 2025

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.3K
Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
09:19

Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging

Published on: April 18, 2025

448
A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry
06:36

A Field Primer for Monitoring Benthic Ecosystems Using Structure-From-Motion Photogrammetry

Published on: April 15, 2021

3.7K

科学领域:

  • 声学 声学 在声学上
  • 信号处理 信号处理
  • 水下航行水下导航

背景情况:

  • 抵达角 (AOA) 测量对于水下声学定位至关重要.
  • 传统的方法通常需要亚 azimuth / 高度和范围数据,限制了范围不可用的应用.
  • 超短基线 (USBL) 系统通常使用轴承测量,但缺乏没有范围的封闭式解决方案.

研究的目的:

  • 开发一种封闭形式的解决方案,用于水下声学定位,仅使用轴承测量.
  • 为了解决需要范围信息的传统方法的局限性.
  • 为了提高定位准确度,在场景中,范围有限或没有数据.

主要方法:

  • 衍生出一个伪线性测量模型,将源位置和轴承测量联系起来.
  • 建立了一个包含多个约束的加权最小方程优化方程.
  • 采用半确定的编程 (SDP) 为初始解决方案,然后采用偏差补偿方法.

主要成果:

  • 数字模拟显示性能接近克莱默-拉奥下限 (CRLB).
  • 现场测试证实了该方法在没有范围信息的情况下定位源的能力.
  • 与现有技术相比,拟议的方法实现了更高的定位精度.

结论:

  • 开发的方法为只使用轴承测量进行水下声学定位提供了有效的解决方案.
  • 它克服了传统方法的范围依赖,提供了更广泛的适用性.
  • 该技术实现了高精度,通过模拟和现场测试进行验证.