Search research articles

相关概念视频

Double Resonance Techniques: Overview

Double Resonance Techniques: Overview

Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...

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

Radar-Based Monitoring: A Proof of Principle Study in a Piglet Model for a Novel Approach in Non-Contact Vital Sign Monitoring.

Sensors (Basel, Switzerland)·2026

Same author

Investigation of a Camera-Based Contactless Pulse Oximeter with Time-Division Multiplex Illumination Applied on Piglets for Neonatological Applications.

Biosensors·2024

Same author

Choice of Piezoelectric Element over Accelerometer for an Energy-Autonomous Shoe-Based System.

Sensors (Basel, Switzerland)·2024

Same author

Tracking the Traveled Distance of Capsule Endoscopes along a Gastrointestinal-Tract Model Using Differential Static Magnetic Localization.

Diagnostics (Basel, Switzerland)·2022

Same author

Dependence of Piezoelectric Discs Electrical Impedance on Mechanical Loading Condition.

Sensors (Basel, Switzerland)·2022

Same author

Feasibility Study of Glucose Concentration Measurement of Aqueous Solution Using Time Domain Reflected Signals.

Sensors (Basel, Switzerland)·2022

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 Journal Methods Collections JoVE Encyclopedia of Experiments 存档

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教师资源中心教师网站

使用条款与条件

Search research articles

相关实验视频

Updated: May 10, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

一个主动雷达干扰仪,使用基于异质原理的目标调制器.

Simon Müller¹, Andreas R Diewald¹, Georg Fischer²

¹Department of Engineering, Trier University of Applied Sciences, 54293 Trier, Germany.

Sensors (Basel, Switzerland)

|April 28, 2025

概括

新型主动雷达干扰仪 (AcRaIn) 系统在混乱的环境中提供精确的管道监控. 这种紧型雷达技术有效地减少了干扰,并达到高精度高达150米.

关键词:

活动雷达目标是主动雷达目标.合作式雷达合作式雷达距离测量测量距离测量方法阶段一致性阶段一致性反射的杂乱抑制抑制反射的杂乱抑制下水道管道监控监控下水道管道监控

更多相关视频

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

相关实验视频

Last Updated: May 10, 2025

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Characterization of Anisotropic Leaky Mode Modulators for Holovideo

Published on: March 19, 2016

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

科学领域:

电气工程电气工程
信号处理信号处理
雷达技术雷达技术的使用

背景情况:

管道和道等环境中的高反射杂乱对传统雷达系统构成挑战.
二级雷达技术需要进步,以便在复杂的工业环境中提高性能.

研究的目的:

引入和验证主动雷达干扰仪 (AcRaIn) 作为一种新的二级雷达解决方案.
为了证明AcRaIn在减少干扰和在混乱的环境,特别是管道中实现高精度的能力.

主要方法:

使用商用24 GHz ISM频段半导体开发一个紧的雷达系统.
实现异质原则,以提高相位连贯性和明确性.
通过自由空间和管道测量进行实验验证,包括曲管道场景.

主要成果:

在各种环境中,成功地展示了高达150米的功能.
实现了干扰减少和高精度,与手动测量相比,偏差低于1.25%.
振幅调制有效地抑制了被动杂乱,以实现更清晰的信号差异化.

结论:

活动雷达干扰仪 (AcRaIn) 显示了管道监控和类似应用的巨大潜力.
优化信号处理和解决信号衰减是未来发展的关键领域.
该系统的紧设计和商业技术的使用提供了效率和灵活性.