Lionel Cordesses

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Visual servoing requires an object in the field of view of the camera, in order to control the robot evolution. Otherwise , the virtual link is broken and the control loop cannot continue to be closed. In this paper, a novel approach is presented in order to guarantee that the object remains in the field of view of the camera during the whole robot motion.(More)
An accurate localization system (Carrier Phase diierential GPS receiver) allows the design and implementation of an absolute vehicle guidance system. The preliminary work, presented in this paper, was aimed at validating the use of one GPS receiver in a vehicle guidance system, without any orientation sensor. We designed and implemented a non linear control(More)
Precision agriculture involves very accurate f a r m vehicle control along recorded paths, which are not necessarily straight lines. In this paper, we investigate the possibility of achieving this task with a CP-DGPS as the unique sensor. T h e vehicle heading is derived according t o a Kalman state reconstructor, and a nonlin-ear velocity independent(More)
BIOGRAPHY Lionel Cordesses is a Ph.D. student in robotics at Cemagref and LASMEA. He is an electrical engineer from the CUST since 1997. He also received his master's degree in robotics in 1997, Blaise Pascal University, France. His research interests include Automatic Guided Vehicles (AGV) using GPS. he has been assistant professor of Computer Science at(More)
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