Results 241 to 250 of about 2,377,503 (288)

Sensitivity Considerations in Trajectory Optimization

IEEE Transactions on Aerospace and Electronic Systems, 1978
A technique by which the trajectory optimization problem can be formulated to include the trajectory sensitivity functions in the performance index is presented. It is shown that an explicit steering law, which can be derived for the upper atmospheric flight of a vehicle, is a function of the sensitivity state, adjoint vectors, and the parameters of ...
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Efficient Order-Sensitive Activity Trajectory Search

2017
In this paper, we study the problem of order-sensitive activity trajectory search. Given a query containing a set of time-order target locations, the problem is to find the most suitable trajectory from the trajectory database such that the resulting trajectory can achieve the minimum distance from the query.
Kaiyang Guo, Rong-Hua Li, Shaojie Qiao, Zhenjun Li, Weipeng Zhang, Minhua Lu   +5 more
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Trajectory sensitivity analysis: a new criterion

International Journal of Systems Science, 1985
For linear system simulation and analysis, it is sometimes necessary to compare the trajectories of a nominal system and a perturbed system. The perturbed system may result from system parameter variations, non-linearities, model reduction, suboptimal controller design and soon. A criterion to measure the trajectory deviation is established through the
S. FU, M. E. SAWAN, Y. FU, M. T. TRAN
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Trajectories of cold but not mechanical sensitivity correspond with disability trajectories after whiplash injury

Pain
Abstract Developmental trajectories for neck disability after whiplash injury have been identified. Their relationship to cold and mechanical sensitivity trajectories is not known. We aimed to (1) identify recovery trajectories of cold and mechanical sensitivity, (2) explore their codevelopment with disability trajectories, (3) identify ...
Scott F. Farrell, Nigel R. Armfield, Eythor Kristjansson, Ken Niere, Steffan Wittrup McPhee Christensen, Michele Sterling   +5 more
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Controller Design with Trajectory Sensitivity Minimization Using LMI

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2007
To design a controller with block-diagonal structure for trajectory sensitivity minimization, we propose a method based on LMI. In order to reduce the trajectory sensitivity, linear quadratic regulator theory is adopted, and this is solved using LMI optimization technique.
Seongjin Yim, Youngjin Park
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Formulation of the minimum trajectory sensitivity problem

IEEE Transactions on Automatic Control, 1969
Two possible ways of introducing a trajectory sensitivity vector into the closed-loop linear optimal control problem, their relationship, and their relative merits are discussed.
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Escape System Trajectory Sensitivity Analysis.

1978
Abstract : Several modeling changes were performed on existing Trajectory Simulation Computer Programs to simulate the operation of various escape systems. A study was conducted to identify significant input parameters and the models' response to variations in the parameter values.
Gene C. Eberly, James F. McEnerney, John J. Piacentino   +2 more
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Jump Conditions for Second-Order Trajectory Sensitivities at Events

2018 IEEE International Symposium on Circuits and Systems (ISCAS), 2018
Trajectory sensitivity analysis has been widely used to analyze the dynamic behaviour of complex systems such as power system. It is common to use first-order sensitivities, which have been fully described for hybrid dynamical system. However, second-order trajectory sensitivities have only been analyzed for continuous systems.
Sijia Geng, Ian A. Hiskens
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Trajectory Accuracy Sensitivity to Modeling Factors

15th AIAA Aviation Technology, Integration, and Operations Conference, 2015
This paper presents the analysis of sensitivity of aircraft trajectory prediction to relevant modeling factors such as wind, temperature, thrust settings, speed and aircraft mass. The topic is important because current and planned automation systems used for air traffic management, airline operations and Flight Management Systems rely on the accuracy ...
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Privacy-aware querying over sensitive trajectory data

Proceedings of the 20th ACM international conference on Information and knowledge management, 2011
Existing approaches for privacy-aware mobility data sharing aim at publishing an anonymized version of the mobility dataset, operating under the assumption that most of the information in the original dataset can be disclosed without causing any privacy violations.
Nikos Pelekis, Aris Gkoulalas-Divanis, Marios Vodas, Despina Kopanaki, Yannis Theodoridis   +4 more
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