H
Håvard Fjær Grip
Researcher at California Institute of Technology
Publications - 84
Citations - 2627
Håvard Fjær Grip is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Linear system & Mars Exploration Program. The author has an hindex of 25, co-authored 75 publications receiving 2247 citations. Previous affiliations of Håvard Fjær Grip include University of Twente & Washington State University.
Papers
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Journal ArticleDOI
Output synchronization for heterogeneous networks of non-introspective agents
TL;DR: This paper considers the output synchronization problem for heterogeneous networks of linear agents, and designs decentralized controllers based on setting the control input of a single root agent to zero and letting the remaining agents synchronize to the root agent.
Journal ArticleDOI
Attitude Estimation Using Biased Gyro and Vector Measurements With Time-Varying Reference Vectors
TL;DR: An algorithm for estimation of bias in the body-fixed vector measurements, which is analyzed in combination with the attitude and gyro bias observer, and proves semiglobal stability without either of these assumptions when a parameter projection is added.
Journal ArticleDOI
Vehicle velocity estimation using nonlinear observers
Lars Imsland,Tor Arne Johansen,Thor I. Fossen,Håvard Fjær Grip,Jens Kalkkuhl,Avshalom Suissa +5 more
TL;DR: Nonlinear observers for estimation of lateral and longitudinal velocity of automotive vehicles are proposed based on a sensor suite that is standard in many new cars, consisting of acceleration and yaw rate measurements in addition to wheel speed and steering angle measurements.
Proceedings ArticleDOI
Mars Helicopter Technology Demonstrator
J. Balaram,Timothy Canham,Courtney Duncan,Matthew P. Golombek,Håvard Fjær Grip,Justin N. Maki,Amelia Quon,Ryan A. Stern,David Zhu +8 more
TL;DR: Nomenclature ADC Analog-to-Digital Converter BIB Battery Interface Board COTS Commerical Off-the-shelf CPU Central Processor Unit dof degrees-of-freedom ECM Electronics Core Module EDM Engineering Design Model
Journal ArticleDOI
Vehicle sideslip estimation
TL;DR: In this article, the authors developed a vehicle sidelip observer that takes the nonlinearities of the system into account, both in the theoretical analysis and the design, to make the observer suitable for implementation in the embedded hardware, and a reduction in the number of tuning parameters compared to the EKF.