A novel cycloidal scanning LiDAR sensor using Risley prism and optical orthogonal frequency-division multiple access for aerial applications

This study proposes a novel light detection and ranging (LiDAR) sensor. The sensor integrates a variable field-of-view (FoV) function by utilizing optical orthogonal frequency-division multiple access (OOFDMA) to generate laser pulse streams and a Risley prism for steering. Using this approach, the...

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Bibliographic Details
Published in:IEEE access 2024-01, Vol.12, p.1-1
Main Authors: Kim, Gunzung, Ashraf, Imran, Eom, Jeongsook, Park, Yongwan
Format: Article
Language:English
Subjects:
Area measurement
Distance measurement
DWDMA
Frequency division multiple access
Laser radar
Lasers
LiDAR
Measurement by laser beam
Optical imaging
optical OFDMA
Optical pulses
Optical refraction
Risley prism
Rotation measurement
Semiconductor lasers
Sensors
Steering
Urban air mobility
variable field-of-view
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Summary:This study proposes a novel light detection and ranging (LiDAR) sensor. The sensor integrates a variable field-of-view (FoV) function by utilizing optical orthogonal frequency-division multiple access (OOFDMA) to generate laser pulse streams and a Risley prism for steering. Using this approach, the LiDAR sensor can adjust the scanning pattern and density of the point cloud to match different sizes, distances, and distributions of objects. To ensure security against external threats, the LiDAR sensor incorporates advanced encryption standards (AES) and wavelength selection techniques. Additionally, the sensor employs various methods to achieve accurate and reliable measurements while minimizing mutual interference between laser signals. This innovative sensor has the potential to enhance the reliability and accuracy of LiDAR technology in aerial applications, thus facilitating the development of more advanced urban air mobility (UAM) sensors for diverse applications. The study evaluated a prototype LiDAR sensor that utilizes a coded laser pulse stream and OOFDMA technology for distance measurement. The LiDAR sensor incorporates three laser diodes with different wavelengths and a Risley prism for steering. The experimental results demonstrate that the proposed LiDAR sensor outperforms existing sensors in terms of accuracy and precision.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2024.3383810