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Géolocalisation et navigation

28-29 mars, 2018
Observatoire de Paris

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Rechercher > Par auteur > Petrov Nikita

Conf. invit. : Benefits of space-time diversity for radar
Francois Le Chevalier  1, *@  , Nikita Petrov  1@  
1 : Delft University of Technology  (TU Delft)  -  Site web
Postbus 5 2600 AA Delft -  Pays-Bas
* : Auteur correspondant

When designing a new radar system, standard resolution trade-offs play a major role, providing the basic parameters of the radar, such as size, update rate, and range. Besides, diversity has long been used for mitigating fading effects due to the fluctuation of targets and clutter.

However, with the arrival of more flexible systems, using multiple parallel channels on transmit and receive, and wider instantaneous bandwidths, these standard trade-offs are becoming less simple – and more flexible. In this communication, we will analyze the relations between range, Doppler, and angle, for detection and location of moving targets with wideband / wide beam radar systems. The idea is to contribute to a better understanding of the real benefits of agile transmissions for detection/localization of moving targets, focusing on range, velocity and angular measurement improvements, and on the benefits in terms of power budget.

Special attention will be given to the quality of the different wideband wide-beam sensor modes for long range surveillance, and new results on detection of moving targets in clutter will be provided to demonstrate the effectiveness of these new architectures for small targets detection at long range, in difficult environments.



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