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Speed-Direction Sensing under Multiple Vehicles Scenario Using Photonic Radars
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Speed-Direction Sensing under Multiple Vehicles Scenario Using Photonic Radars
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Speed-Direction Sensing under Multiple Vehicles Scenario Using Photonic Radars
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Journal Article
Speed-Direction Sensing under Multiple Vehicles Scenario Using Photonic Radars
2022
Overview
Recent reports from World Health Organization (WHO) show the impact of human negligence as a serious concern for road accidents and casualties worldwide. There are number of reasons which led to this negligence; hence, need of intelligent transportation system (ITS) gains more attention from researchers worldwide. For achieving such autonomy different sensors are involved in autonomous vehicles which can sense road conditions and warn the control system about possible hazards. This work is focused on designing one such sensor system which can detect and range multiple targets under the impact of adverse atmospheric conditions. A high-speed Linear Frequency Modulated Continuous Wave (LFMCW) based Photonic Radar is proposed to detect multiple targets by integrating Mode division multiplexing (MDM). Reported results in terms of range frequency, Doppler frequency and range resolution are demonstrated using numerical simulations with the bandwidths of 1 and 4 GHz and under adverse atmospheric conditions carrying 75 dB/km of attenuation. To prove the effectiveness of the proposed photonic radar, moving targets are also demonstrated with different speed. System reported substantial range resolution of 15 cm using 1 GHz of bandwidth and 3 cm using 4 GHz of bandwidth.
