Performance enhancement of photonic radar sensor for detecting multiple targets by incorporating mode division multiplexing

Recent reports from the world health organization emphasize the role of human negligence in road accidents worldwide. This asserts the importance of autonomy in transportation systems. Advanced transport systems need effective detecting systems in terms of cost-effectiveness as well as capability of...

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Bibliographic Details
Published in:Optical and quantum electronics 2022, Vol.54 (7), Article 410
Main Authors: Sharma, Abhishek, Malhotra, Jyoteesh
Format: Article
Language:English
Subjects:
Autonomy
Characterization and Evaluation of Materials
Computer Communication Networks
Continuous radiation
Electrical Engineering
Free space optics
Lasers
Multiplexing
Negligence
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Radar detection
System effectiveness
Target detection
Traffic accidents
Transportation systems
Weather
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Summary:Recent reports from the world health organization emphasize the role of human negligence in road accidents worldwide. This asserts the importance of autonomy in transportation systems. Advanced transport systems need effective detecting systems in terms of cost-effectiveness as well as capability of multi-target detection along with small dimensions and low power requirements. To realize such an autonomous vehicle, linear frequency modulated continuous wave photonic radar is recommended that operates in Free Space Optics. We propose FMCW based photonic radar for multiple target detection under adverse weather conditions using Mode Division Multiplexing (MDM). Four Laguerre-Gaussian (LG) modes namely LG00, LG01, LG02, and LG03 are used to detect four targets in varying atmospheric conditions (up to 75 dB/Km attenuation) over 80 m of distance. The system is also verified for the impact of bandwidth variations upon range resolution of photonic radar with 1 GHz, 2 GHz, and 4 GHz of bandwidth.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-022-03812-7