Español

Research on LiDAR at the University of Electronic Science and Technology of China, published in Nature

206
2024-06-22 09:49:06
Ver traducción

The team from the School of Information and Communication Engineering at the University of Electronic Science and Technology of China has proposed for the first time a laser radar instrument based on the dispersion Fourier transform method, forming a new demodulation mechanism. This instrument breaks through the cross limitations of measurement speed, accuracy, and distance, and has unique advantages in the discovery of low, slow, and small targets such as drones. The relevant paper was published in Nature Communications.


Lidar, as a powerful tool, can draw spatial information in real-time with extremely high accuracy and is widely used in industrial manufacturing, remote sensing, airborne and vehicular tasks. In the past two decades, the rapid development of optical frequency combs has improved measurement accuracy to the level of quantum noise limitation. The research at the University of Electronic Science and Technology of China uses the dispersion Fourier transform method to analyze the data information of the phase-locked vernier double soliton laser comb. Through online pulse stretching, it achieves full spectrum interferometric measurement based on traditional time interferometry or pulse reconstruction methods to identify pulse delay. This results in an absolute distance measurement accuracy of 2.8 nanometers and a measurement distance of 1.7 kilometers. In addition, this method has the unique ability to completely eliminate dead zones, which is particularly beneficial for small object detection.

Source: OFweek

Recomendaciones relacionadas
  • Scientists develop photo activated glass for clean energy production

    Japanese and Swiss scientists have collaborated to develop glass that can generate electricity under light, which may pave the way for sustainable energy production. Researchers from Tokyo Institute of Technology and the Swiss Federal Institute of Technology in Lausanne used femtosecond lasers to etch circuits on glass surfaces, resulting in the unexpected generation of semiconductor crystals.The ...

    2024-03-11
    Ver traducción
  • Linear Pluggable Optical Device Alliance Definition Linear Pluggable Optical Device Specification

    A group of network, semiconductor, and optical companies formed the LPO MSA to develop the network equipment and optical module specifications required to implement a wide ecosystem of interoperable LPO solutions.These specifications address the industry challenges of reducing power consumption, cost, and latency while improving the reliability of high-speed optical interconnections.Accelink, AMD...

    2024-03-26
    Ver traducción
  • Xi'an Institute of Optics and Fine Mechanics has made significant progress in attosecond imaging research

    Recently, the Xi'an Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences has made significant progress in attosecond imaging research, achieving high-resolution imaging of ultra wide spectrum light sources. The related results were published in the journal Photonics Research under the title "Snapshot coherent diffraction imaging across ultra wideband spectra".Figure 1. Demonst...

    2024-10-26
    Ver traducción
  • Accurate measurement of neptunium ionization potential using new laser technology

    Neptunium is the main radioactive component of nuclear waste, with a complex atomic structure that can be explored through mass spectrometry. This analysis is crucial for understanding its inherent characteristics and determining the isotopic composition of neptunium waste. Magdalena Kaja and her team from Johannes Gutenberg University in Mainz, Germany have developed a novel laser spectroscopy te...

    2024-05-11
    Ver traducción
  • Improvements in LiDAR technology will help NASA scientists and explorers perform remote sensing and measurement functions

    Improvements in LiDAR technology will assist NASA scientists and explorers in remote sensing and measurement, surveying, 3D image scanning, hazard detection and avoidance, and navigation.Like sonar that uses light instead of sound, LiDAR technology is increasingly helping NASA scientists and explorers with remote sensing and measurement, surveying, 3D image scanning, hazard detection and avoidance...

    2023-10-26
    Ver traducción