Search research articles

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

相关概念视频

NMR Spectrometers: Resolution and Error Correction

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...

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

Metformin inhibits metastatic breast cancer progression and improves chemosensitivity by inducing vessel normalization via PDGF-B downregulation.

Journal of experimental & clinical cancer research : CR·2019

Same author

Sulfur-Grafted Hollow Carbon Spheres for Potassium-Ion Battery Anodes.

Advanced materials (Deerfield Beach, Fla.)·2019

Same author

Evaluation of incomplete blinking as a measurement of dry eye disease.

The ocular surface·2019

Same author

Evaluation of preoperative anesthesia in patients with mediastinal tumors by cinematic rendering.

Journal of clinical anesthesia·2019

Same author

CRISPR/Cas9-mediated efficient genome editing via protoplast-based transformation in yeast-like fungus Aureobasidium pullulans.

Gene·2019

Same author

Mechanically Reinforced Catechol-Containing Hydrogels with Improved Tissue Gluing Performance.

Biomimetics (Basel, Switzerland)·2019

Search research articles

相关实验视频

Updated: May 8, 2025

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

基于超级小组变换算法的FMCW LIDAR非线性校正.

Jun Feng, Xingyan Zhao, Yang Qiu

|February 14, 2025

概括

本研究引入了一种超级小变换 (SLT) 方法,用于纠正频率调制连续波 (FMCW) 光探测和测距 (LIDAR) 系统中的非线性. 该技术显著提高了测距精度和速度测量精度.

科学领域:

光学和光子学在光学和光子学.
计量学计量学计量学
信号处理信号处理

背景情况:

激光频率调制在FMCW LIDAR中的非线性降低了范围精度.
节拍信号的半最大全宽度 (FWHM) 由于调制非线性而增加.
现有的方法很难充分解决这种精度限制因素.

研究的目的:

为FMCW LIDAR提出和验证一种新的非线性校正方法.
为了提高FMCW LIDAR系统的距离精度和速度测量精度.
为了减轻激光频率调制非线性的影响.

主要方法:

开发了一种基于超级小组变换 (SLT) 的非线性校正方法.
在FMCW LIDAR系统中集成了一个辅助干扰仪.
来自辅助节拍信号的SLT的时间频率关系被用于重新采样测量节拍信号.

主要成果:

在重新抽样后的非线性减少到2.60 × 10−10.
该系统保持了清晰的光谱峰值,即使纤维长度延长了13倍.
平均范围标准偏差 (SD) 为2.35毫米,分辨率为4.8厘米,在2.5米范围内.

更多相关视频

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

Published on: December 1, 2016

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Published on: April 12, 2014

相关实验视频

Last Updated: May 8, 2025

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

Three-dimensional Super Resolution Microscopy of F-actin Filaments by Interferometric PhotoActivated Localization Microscopy iPALM

Published on: December 1, 2016

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

Published on: April 12, 2014

平均速度测量SD为7.7mm/s,在6cm/s范围内.

结论:

提出的基于SLT的非线性校正方法有效地改善了FMCW LIDAR线性.
该方法显著提高了测距精度和速度测量精度.
这种技术为高精度的FMCW LIDAR应用提供了强大的解决方案.