English

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

1174
2024-06-22 09:49:06
See translation

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

Related Recommendations
  • Leica Cine 1 laser TV with 4K display screen launched with a starting price of $8995

    Photography brand Leica has launched its first 4K movie and television. The Leica Cine 1 laser TV was announced a year later during the I FA 2022 period. This iconic photography brand is shifting some of its focus to projecting perfect images in our living room.featureThe Leica Cine 1 laser TV embodies Leica's philosophy in its camera design. Leica continues to provide precision optical engineerin...

    2023-10-19
    See translation
  • Shanghai Institute of Optics and Fine Mechanics has made progress in the field of high-intensity laser cracking of high-density polyethylene

    Recently, a team from the National Key Laboratory of Ultra strong Laser Science and Technology at the Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, collaborated with the Arctic University of Norway (UiT) to make progress in the efficient cracking of high-density polyethylene (HDPE) using strong laser molecular bond breaking technology. The research results were publ...

    06-16
    See translation
  • Fulu and Longview begin design work on laser melting devices

    Longview Fusion Energy Systems and Fluor have taken another step towards commercialization of laser fusion power plants.According to the memorandum of understanding signed by the two companies, Fulu will design the factory for Longview Fusion Energy Systems. The two companies collaborated and signed a memorandum of understanding in 2023 to leverage Fulu's experience in developing and constructing ...

    2024-03-13
    See translation
  • Acta: Revealing the mechanism of defect formation in additive manufacturing

    Main author: Yanming Zhang, Wentao Yana*The first unit: National University of SingaporePublished Journal: Acta MaterialiaResearch backgroundIndustry pain point: Although laser powder bed melting (LPBF) technology can manufacture complex components, the lack of consistent product quality is still the core bottleneck restricting its industrial application. Research has shown that up to 35% of proce...

    02-21
    See translation
  • Webasto joins hands with Tongkuai to lead the new trend of electric vehicle technology

    In the process of selecting electric vehicles, the effectiveness of the heating system is often overlooked. However, this system is crucial for providing a warm and comfortable driving environment and removing frost and fog from winter windows. More importantly, it can also improve battery efficiency, as the battery performs best within a specific temperature range.Unlike internal combustion engin...

    2024-06-12
    See translation