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Contribution à la conception de radars impulsionnels : Maîtrise de la rapidité de balayage et traitement de signal associé

Abstract : This thesis presents the design of an Ultra Wide Band radar triggered by an optoelectronic generator which is dedicated to ultra short pulses radiation for short and medium range detection. The emitting part of this radar is based on transmitting array composed of several UWB antennas with an integrated photoswitch device triggered using optical pulses and a receiving UWB antenna. A specific signal processing method has been proposed and implemented for UWB optoelectronic radar involving autonomous beam scanning capability in order to overcome the limitation in the depth of detection encountered while using standard imaging algorithm. Indeed, this hybrid correlation/CLEAN algorithm considers the whole measured burst and finds the relevant information to rebuilt a radar map with a very good accuracy. In order to improve the radar map quality, the waveform generation technique has been discussed and, more precisely, the temporal shaping method to obtain specific spectrum using evolutionary algorithm.
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https://tel.archives-ouvertes.fr/tel-01386443
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Submitted on : Monday, October 24, 2016 - 11:02:07 AM
Last modification on : Monday, December 16, 2019 - 12:07:07 PM

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  • HAL Id : tel-01386443, version 1

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Romain Négrier. Contribution à la conception de radars impulsionnels : Maîtrise de la rapidité de balayage et traitement de signal associé. Electronique. Université de Limoges, 2016. Français. ⟨NNT : 2016LIMO0061⟩. ⟨tel-01386443⟩

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