chanelink logo
CHANELINK
English

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

1103
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

  • UCI Cinemas collaborates with The Marvels to launch its new 4K laser projector

    Cinemas are in a developmental stage. Their roles are changing and the rules are being rewritten. Many people have proposed a way to make cinemas a truly unique place by providing audiences with a higher quality experience. It is along this route that UCI Cinemas continues to move forward. In recent days, it has officially launched a 4K laser projector and had a special date with the new MCU movie...

    2023-11-14
    See translation

  • Seyond plans to land on the Hong Kong Stock Exchange in De SPAC mode

    Recently, TechStar Acquisition Corporation (07855. HK), a special purpose acquisition company, announced that Seyond, the successor company of the special purpose acquisition transaction, has submitted a new listing application. Seyond plans to land on the Hong Kong Stock Exchange under the De SPAC model. This means that Seyond is only one step away from going public through a backdoor listing. If...

    02-14
    See translation

  • NLIGHT announces financial performance for the fourth quarter and full year of 2024

    Recently, nLIGHT, a manufacturer of high-power semiconductors and fiber lasers, announced its financial performance for the fourth quarter and full year of 2024.financial summaryTotal revenue: 198.5 million US dollars, a decrease from 209.9 million US dollars in 2023, due to a decline in sales in the laser product department.Operating loss: A loss of $65.6 million, compared to a loss of $46.8 mill...

    03-04
    See translation

  • Sweden's powerful laser system generates ultra short laser pulses

    For the first time, researchers at Umeå University, Sweden, have demonstrated the full capabilities of their large-scale laser facility. The team reports generating a combination of ultrashort laser pulses, extreme peak power, and precisely controlled waveforms that make it possible to explore the fastest processes in nature.Umeå’s laser is 11 m long and generates very short pulses László Vei...

    08-20
    See translation

  • Launching the world's strongest laser at a cost of 320 million euros

    Beijing, April 1st (Reporter Liu Xia) - The world's most powerful laser has been activated recently. On March 31st, the Physicist Organization Network reported that the system can enable laser pulses to reach a peak of 10 terawatts (1 terawatt=100 terawatts=1015 watts) within 1 femtosecond (1000 trillions of a second), which is expected to promote revolutionary progress in multiple fi...

    2024-04-03
    See translation