Trajectory

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A trajectory is the path that a moving object follows through space as a function of time. The object might be a projectile or a satellite, for example. It thus includes the meaning of orbit—the path of a planet, an asteroid or a comet as it travels around a central mass. (Wikipedia.org)






Conferences related to Trajectory

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2017 IEEE Power & Energy Society General Meeting

The annual IEEE Power & Energy Society General Meeting will bring together over 2000 attendees for technical sessions, student program, awards ceremony, committee meetings, and tutorials.

  • 2015 IEEE Power & Energy Society General Meeting

    The annual IEEE PES General Meeting will bring together over 2500 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutorials and more PLEASE NOTE: Abstracts are not accepted for the 2015 IEEE PES General Meeting, full papers only can be submitted to the submission site 24 October 2014 through 21 November 2014.  The site will be available from the PES home page www.ieee-pes.org

  • 2014 IEEE Power & Energy Society General Meeting

    The annual IEEE PES General Meeting will bring together over 2500 attendees for technical sessions, administrative sessions, super sessions, poster sessions, student programs, awards ceremonies, committee meetings, tutotials and more

  • 2013 IEEE Power & Energy Society General Meeting

    The annual IEEE Power & Energy Society General Meeting will bring together over 2000 attendees for technical sessions, student program, awards ceremony, committee meetings, and tutorials.

  • 2012 IEEE Power & Energy Society General Meeting

    The annual IEEE Power & Energy Society General Meeting will bring together over 2000 attendees for technical sessions, student program, awards ceremony, committee meetings, and tutorials.

  • 2011 IEEE Power & Energy Society General Meeting

    IEEE Power & Energy Annual Meeting --Papers --Awards --Plenary --Committee Meetings --Governing Board --Receptions --Tech tours --Tutorials --Companions Program

  • 2010 IEEE Power & Energy Society General Meeting

    IEEE Power & Energy Society Annual Meeting --Technical Sessions --Committee Meetings --Plenary Session --Gove Board Meeting --Awards Banquet --Tutorials --Student Activities --Social Events --Companions Program

  • 2009 IEEE Power & Energy Society General Meeting

    Paper and Panel sessions involving topics of interest to electric power engineers, technical committee meetings, administrative committee meetings, awards luncheon and plenary session.

  • 2008 IEEE Power & Energy Society General Meeting

    This meeting has paper and panel sessions on all areas of interest to electric power engineers.

  • 2007 IEEE Power Engineering Society General Meeting


2013 IEEE/AIAA 32nd Digital Avionics Systems Conference (DASC)

DASC is the premier annual conference providing authors an opportunity for publication and presentation to an international audience of papers encompassing the field of avionics systems for aircraft/rotorcraft/unmanned aircraft (commercial, military, general aviation) launch vehicles, missiles, spacecraft, and space transportation systems, navigation, guidance/control of flight, computers, communications, sensors (radar, infrared, visual bands), avionics architectures and data networking, communications networks, software, crew interface, space and ground components needed for the operation of military, commercial, and business aircraft, and avionics electrical power generation and control, Student papers are entered into a judged competition.

  • 2012 IEEE/AIAA 31st Digital Avionics Systems Conference (DASC)

    Digital avionics systems for aircraft/rotorcraft/unmanned aircraft (commercial, military, general aviation); communications, command and control; air traffic management; space systems (launch vehicles, spacecraft, and satellites); history of avionics systems and their contributions to exploring the earth and space; economic impact of avionics systems

  • 2011 IEEE/AIAA 30th Digital Avionics Systems Conference (DASC)

    Digital avionics systems for aircraft/rotorcraft/unmanned aircraft (commercial, military, general aviation);communications, command and control; air traffic management; space systems (launch vehicles, spacecraft, satellites);human systems interface; avionics software; avionics design tools

  • 2010 IEEE/AIAA 29th Digital Avionics Systems Conference (DASC)

    Digital Avionics Systems design, integration, operation, and support; air traffic management; space systems; integrated communication, navigation, and surveillance; systems engineering; unmanned aeronautical systems

  • 2009 IEEE/AIAA 28th Digital Avionics Systems Conference (DASC)

    The 28th DASC focuses on Digital Avionics. Technical Papers and tutorials are also provided on ATM/CNS, NextGen, flight critical systems, aviation security, synthetic vision, aerospace avionics, and systems engineering.

  • 2008 IEEE/AIAA 27th Digital Avionics Systems Conference (DASC)

    The theme of the 27th DASC is Integrated Modular Avionics. Technical Papers and tutorials are also provided on ATM/CNS, NextGen, flight critical systems, aviation security, synthetic vision, aerospace avionics, and systems engineering.

  • 2007 IEEE/AIAA 26th Digital Avionics Systems Conference (DASC)

    The purpose of the Conference is to provide a forum for the exchange of new knowledge in digital avionics among professionals and students in the fields of commerical, military, and general aviation and space applications. The Conference serves the needs and professional interests of AIAA/IEEE members and promotes, in a public environment, their contributions and achievements in the arts, sciences and technology of aeronautics and astronautics.


2013 Integrated Communications, Navigation and Surveillance Conference (ICNS)

New reserach, development and implementation programs and policies related to ICNS -data link communications, ADS-B, SWIM, airport surface communications, spectrum constraints, transition to digital communications, surveillance systems integration, satellite-based navigation, integration, avionics equipage, secure airborne networking, unmanned aircraft integration into the airspace, NextGen, SESAR, and new commercial aircraft integration and operation, airspace management, weather

  • 2012 Integrated Communications, Navigation and Surveillance Conference (ICNS)

    New research, development and implementation programs and policies related to ICNS-data link communications, ADS-B, SWIM, airport surface communications, spectrum constraints, transition to digital communications, surveillance systems integration, satellite-based navigation integration, avionics equipage, secure airborne networking, unmanned aircraft integration into the airspace, NextGen, SESAR, and the new commercial aircraft integration and operation.

  • 2011 Integrated Communications, Navigation and Surveillance Conference (ICNS)

    The 2011 ICNS Conference addresses research needs, policy, and development for early implementation of integrated CNS technologies needed to enable NextGen. ICNS focuses on understanding CNS programs, longer term plans, standards, technology, and validation for early implementation of NextGen.

  • 2010 Integrated Communications, Navigation and Surveillance Conference (ICNS)

    The ICNS Conference addresses research and development of integrated communication, navigation, and surveillance technologies for advanced digital information systems and applications supporting the future global air transporation system. Focus is understanding of CNS Programs, plans,research and technology for the 2012-2020 time frame and beyond 2025.

  • 2009 Integrated Communications, Navigation and Surveillance Conference (ICNS)

    Close integration of on-board and ground flight management functions is the key to implementing the NextGen flight operations that will create the benefits of fewer delays, increased route efficiency, lower fuel consumption, further reduction of environmental impact, and lower per-flight system operations costs. The conference program provides up-to-date status of NextGen activities and discussion of the state of the art in technical development


2012 10th World Congress on Intelligent Control and Automation (WCICA 2012)

A. Intelligent Control B. Control Theory and Control Engineering C. Complex Systems and Intelligent Robots D. Others


2012 International Conference on Information and Automation (ICIA)

Information, automation, and related areas.


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Xplore Articles related to Trajectory

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A disciplinary comparison of trajectories of U.S.A. engineering students

Susan M. Lord; Richard A. Layton; Matthew W. Ohland 2014 IEEE Frontiers in Education Conference (FIE) Proceedings, 2014

We are conducting a longitudinal, multi-institutional, and multivariate study of the trajectories of students in specific engineering disciplines in the U.S.A. to an extent never before possible. Focusing on the eleven partner institutions of the Multiple-Institution Database for Investigating Engineering Longitudinal Development (MIDFIELD), we examine trajectories of engineering students in five engineering disciplines by race/ethnicity and gender. This work-in-progress focuses ...


Swarm obstacle and collision avoidance using descriptor functions

Mario Innocenti; Lorenzo Pollini; Giovanni Franzini; Alessandro Salvetti 2016 IEEE Conference on Control Applications (CCA), 2016

The descriptor function framework is used as tool for the control management of a swarm of dynamic agents. In this framework, a provision is made for obstacle and collision avoidance, thus improving the potential of the methodology from previous results. Obstacle and collision avoidance terms are added to the overall mission performance index, and the resulting control law moves the ...


Three dimensional ultrasound guided percutaneous renal puncture: A phantom study

Ken Chen; Zhicheng Li; Ling Li; Jia Gu Proceedings of 2012 IEEE-EMBS International Conference on Biomedical and Health Informatics, 2012

In this paper, we evaluate a proposed three dimensional ultrasound (3D US) guided navigation system for percutaneous renal puncture with an abdomen phantom. The system provides surgeons with intra-operative surgical navigation incorporating pre-operative needle trajectory planning. The intra-operative three dimensional ultrasound images are registered to the pre-operative magnetic resonance (MR) images, such that the pre-operative planning can be transferred to ...


Time-delay and Doppler-shift based geolocation by Semi-Definite Programming

Joseph S. Picard; Anthony J. Weiss 2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO), 2012

Semi-Definite Programming (SDP) has been widely used for geolocation based on time-delay data. It offers lower computational costs at the expense of slight accuracy decreases. In this work, we consider the case of Doppler data, that is overlooked in existing works, since convex relaxation for Doppler data seems less obvious than for time-delay data. We fill this gap and provide ...


Method to Design Multi Axis Motion Controller Using Extended DDA Circuit

Jun Zhang; Xu Wang 2009 IITA International Conference on Control, Automation and Systems Engineering (case 2009), 2009

The body of a motion controller comprises of command parser, trajectory planner, position loop and real-time interpolator, pulse generator, and pulse distributor.This paper illustrated design method of a general motion controller using digital pulse interface style. MCU make complex motion plans, the programmable digital hardware generates high frequency pulse trains. An extended DDA circuit is used to overcome the jitter ...


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Educational Resources on Trajectory

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eLearning

A disciplinary comparison of trajectories of U.S.A. engineering students

Susan M. Lord; Richard A. Layton; Matthew W. Ohland 2014 IEEE Frontiers in Education Conference (FIE) Proceedings, 2014

We are conducting a longitudinal, multi-institutional, and multivariate study of the trajectories of students in specific engineering disciplines in the U.S.A. to an extent never before possible. Focusing on the eleven partner institutions of the Multiple-Institution Database for Investigating Engineering Longitudinal Development (MIDFIELD), we examine trajectories of engineering students in five engineering disciplines by race/ethnicity and gender. This work-in-progress focuses ...


Swarm obstacle and collision avoidance using descriptor functions

Mario Innocenti; Lorenzo Pollini; Giovanni Franzini; Alessandro Salvetti 2016 IEEE Conference on Control Applications (CCA), 2016

The descriptor function framework is used as tool for the control management of a swarm of dynamic agents. In this framework, a provision is made for obstacle and collision avoidance, thus improving the potential of the methodology from previous results. Obstacle and collision avoidance terms are added to the overall mission performance index, and the resulting control law moves the ...


Three dimensional ultrasound guided percutaneous renal puncture: A phantom study

Ken Chen; Zhicheng Li; Ling Li; Jia Gu Proceedings of 2012 IEEE-EMBS International Conference on Biomedical and Health Informatics, 2012

In this paper, we evaluate a proposed three dimensional ultrasound (3D US) guided navigation system for percutaneous renal puncture with an abdomen phantom. The system provides surgeons with intra-operative surgical navigation incorporating pre-operative needle trajectory planning. The intra-operative three dimensional ultrasound images are registered to the pre-operative magnetic resonance (MR) images, such that the pre-operative planning can be transferred to ...


Time-delay and Doppler-shift based geolocation by Semi-Definite Programming

Joseph S. Picard; Anthony J. Weiss 2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO), 2012

Semi-Definite Programming (SDP) has been widely used for geolocation based on time-delay data. It offers lower computational costs at the expense of slight accuracy decreases. In this work, we consider the case of Doppler data, that is overlooked in existing works, since convex relaxation for Doppler data seems less obvious than for time-delay data. We fill this gap and provide ...


Method to Design Multi Axis Motion Controller Using Extended DDA Circuit

Jun Zhang; Xu Wang 2009 IITA International Conference on Control, Automation and Systems Engineering (case 2009), 2009

The body of a motion controller comprises of command parser, trajectory planner, position loop and real-time interpolator, pulse generator, and pulse distributor.This paper illustrated design method of a general motion controller using digital pulse interface style. MCU make complex motion plans, the programmable digital hardware generates high frequency pulse trains. An extended DDA circuit is used to overcome the jitter ...


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IEEE-USA E-Books

  • References

    Over almost three decades, the field of human-computer interaction (HCI) has produced a rich and varied literature. Although the focus of attention today is naturally on new work, older contributions that played a role in shaping the trajectory and character of the field have much to tell us. The contributors to HCI Remixed were asked to reflect on a single work at least ten years old that influenced their approach to HCI. The result is this collection of fifty-one short, engaging, and idiosyncratic essays, reflections on a range of works in a variety of forms that chart the emergence of a new field. An article, a demo, a book: any of these can solve a problem, demonstrate the usefulness of a new method, or prompt a shift in perspective. HCI Remixed offers us glimpses of how this comes about. The contributors consider such HCI classics as Sutherland's Sketchpad, Englebart's demo of NLS, and Fitts on Fitts' Law--and such forgotten gems as Pulfer's NRC Music Machine, and Galloway and Rabinowitz's Hole in Space. Others reflect on works somewhere in between classic and forgotten--Kidd's "The Marks Are on the Knowledge Worker," King Beach's "Becoming a Bartender," and others. Some contributors turn to works in neighboring disciplines--Henry Dreyfuss's book on industrial design, for example--and some range farther afield, to Lovelock's Gaia hypothesis and Jane Jacobs's The Death and Life of Great American Cities. Taken together, the essays offer an accessible, lively, and engaging introduction to HCI research that reflects the diversity of the field's beginnings.Thomas Erickson is Research Staff Member at the IBM T. J. Watson Research Center. David W. McDonald is Assistant Professor at the Information School at the University of Was hington, Seattle.

  • Index

    Over almost three decades, the field of human-computer interaction (HCI) has produced a rich and varied literature. Although the focus of attention today is naturally on new work, older contributions that played a role in shaping the trajectory and character of the field have much to tell us. The contributors to HCI Remixed were asked to reflect on a single work at least ten years old that influenced their approach to HCI. The result is this collection of fifty-one short, engaging, and idiosyncratic essays, reflections on a range of works in a variety of forms that chart the emergence of a new field. An article, a demo, a book: any of these can solve a problem, demonstrate the usefulness of a new method, or prompt a shift in perspective. HCI Remixed offers us glimpses of how this comes about. The contributors consider such HCI classics as Sutherland's Sketchpad, Englebart's demo of NLS, and Fitts on Fitts' Law--and such forgotten gems as Pulfer's NRC Music Machine, and Galloway and Rabinowitz's Hole in Space. Others reflect on works somewhere in between classic and forgotten--Kidd's "The Marks Are on the Knowledge Worker," King Beach's "Becoming a Bartender," and others. Some contributors turn to works in neighboring disciplines--Henry Dreyfuss's book on industrial design, for example--and some range farther afield, to Lovelock's Gaia hypothesis and Jane Jacobs's The Death and Life of Great American Cities. Taken together, the essays offer an accessible, lively, and engaging introduction to HCI research that reflects the diversity of the field's beginnings.Thomas Erickson is Research Staff Member at the IBM T. J. Watson Research Center. David W. McDonald is Assistant Professor at the Information School at the University of Was hington, Seattle.

  • Introduction

    With the advent of high-speed logic circuits and very large scale integration, data processing and storage equipment has inexorably moving towards digital techniques. In digital systems, data are encoded into strings of zeros and ones, corresponding to the on and off states of semiconductor switches. The migration of analog communications to the now ubiquitous digital forms of communications is enabled primarily by the fast-paced advances in high-density device integration. While straightforward miniaturization of the CMOs (complementary metal-oxide-semiconductor) devices is becoming increasingly more difficult, transistor designers have been very creative in modifying the designs to stay on the Moore trajectory. The migration from analog to digital information processing has opened the door for many sophisticated algorithmic methods. The chapter incorporates modern digital communication and its brief history, error control coding bandwidth, power, and complexity. The migration from analog to digital information processing has opened the door for many sophisticated algorithmic methods.

  • Passivity-Based Switching Control for Stabilization of Wheeled Mobile Robots

    We propose a novel switching control law for the posture stabilization of a wheeled mobile robot, that utilizes the (energetic) passivity of the system's open-loop dynamics with nonnegligible inertial effects. The proposed passivity-based switching control law ensures that the robot's (x, y)-position enters into an arbitrarily small (as specified by user-designed error-bound) level set of a certain navigation potential function defined on the (x, y)- plane, and that its orientation converges to a target angle. Under this passivity-based switching control, the robot moves back and forth between two submanifolds in such a way that the navigation potential is strictly decreasing during this inter-switching move. Once the system's (x, y)-trajectory enters such a desired level set, at most one more switching occurs to correct orientation. Simulation is performed to validate/highlight properties of the presented control law.

  • Intent Inference and Detection of Anomalous Trajectories: A Metalevel Tracking Approach

    Classical target tracking assumes a state¿¿?space model with target maneuvers modeled as a finite state Markov chain. This chapter motivates by metalevel target tracking applications on longer time scales. It develops metalevel tracking algorithms that assist human operators by extracting spatial patterns from target tracks to identify suspicious/anomalous spatial trajectories. The targets' spatial trajectories are modeled by two types of random processes: stochastic context¿¿?free grammars (SCFGs); and reciprocal random processes. The chapter presents Bayesian filtering and smoothing algorithms for these processes to estimate the trajectories and hence intent of the targets. It describes a system¿¿?level description of the anomalous trajectory classification problem, discusses the radar tracking framework and provides a mathematical description of trajectory classification. The chapter presents SCFG models and associated signal processing algorithms for trajectory modeling and classification. It considers reciprocal processes for modeling target intent. The parsing of the motion trajectories is implemented with Earley¿¿?Stolcke parsing algorithm.

  • Evolving Flying Creatures with Path Following Behaviors

    We present a system which evolves physically simulated 3D flying creatures and their maneuvers. The creature is modelled as a number of articulated cylinders connected by triangular patagia in between. A creature's wing structure and its low-level controllers for straight flight are generated by an evolutionary algorithm. Then a feed-forward neural network is attached to the low-level controllers, and the connection weights of the network for a given trajectory are found by a genetic algonthm. We show that a control system sufficiently effective to allow aerial creatures to follow a complicated path can be achieved by two-step evolution process.

  • Posterior CramerRao Bounds for MultiTarget Tracking

    This study is concerned with multi-target tracking (MTT). The Cramér-Rao lower bound (CRB) is the basic tool for investigating estimation performance. Though basically defined for estimation of deterministic parameters, it has been extended to stochastic ones in a Bayesian setting. In the target tracking area, we have thus to deal with the estimation of the whole trajectory, itself described by a Markovian model. This leads up to the recursive formulation of the posterior CRB (PCRB). The aim of the work presented here is to extend this calculation of the PCRB to MTT under various assumptions.

  • My Vision Isn't My Vision: Making a Career Out of Getting Back to Where I Started

    Over almost three decades, the field of human-computer interaction (HCI) has produced a rich and varied literature. Although the focus of attention today is naturally on new work, older contributions that played a role in shaping the trajectory and character of the field have much to tell us. The contributors to HCI Remixed were asked to reflect on a single work at least ten years old that influenced their approach to HCI. The result is this collection of fifty-one short, engaging, and idiosyncratic essays, reflections on a range of works in a variety of forms that chart the emergence of a new field. An article, a demo, a book: any of these can solve a problem, demonstrate the usefulness of a new method, or prompt a shift in perspective. HCI Remixed offers us glimpses of how this comes about. The contributors consider such HCI classics as Sutherland's Sketchpad, Englebart's demo of NLS, and Fitts on Fitts' Law--and such forgotten gems as Pulfer's NRC Music Machine, and Galloway and Rabinowitz's Hole in Space. Others reflect on works somewhere in between classic and forgotten--Kidd's "The Marks Are on the Knowledge Worker," King Beach's "Becoming a Bartender," and others. Some contributors turn to works in neighboring disciplines--Henry Dreyfuss's book on industrial design, for example--and some range farther afield, to Lovelock's Gaia hypothesis and Jane Jacobs's The Death and Life of Great American Cities. Taken together, the essays offer an accessible, lively, and engaging introduction to HCI research that reflects the diversity of the field's beginnings.Thomas Erickson is Research Staff Member at the IBM T. J. Watson Research Center. David W. McDonald is Assistant Professor at the Information School at the University of Was hington, Seattle.

  • Better To Fail Hopefully…

    Silicon Valley, a small place with few identifiable geologic or geographic features, has achieved a mythical reputation in a very short time. The modern material culture of the Valley may be driven by technology, but it also encompasses architecture, transportation, food, clothing, entertainment, intercultural exchanges, and rituals.Combining a reporter's instinct for a good interview with traditional archaeological training, Christine Finn brings the perspectives of the past and the future to the story of Silicon Valley's present material culture. She traveled the area in 2000, a period when people's fortunes could change overnight. She describes a computer's rapid trajectory from useful tool to machine to be junked to collector's item. She explores the sense that whatever one has is instantly superseded by the next new thing -- and the effect this has on economic and social values. She tells stories from a place where fruit-pickers now recycle silicon chips and where more money can be made babysitting for post-IPO couples than working in a factory. The ways that people are working and adapting, are becoming wealthy or barely getting by, are visible in the cultural landscape of the fifteen cities that make up the area called "Silicon Valley."

  • A Tree Parameterization for Efficiently Computing Maximum Likelihood Maps using Gradient Descent

    In 2006, Olson et al. presented a novel approach to address the graph-based simultaneous localization and mapping problem by applying stochastic gradient descent to minimize the error introduced by constraints. Together with multi- level relaxation, this is one of the most robust and efficient maximum likelihood techniques published so far. In this paper, we present an extension of Olson's algorithm. It applies a novel parameterization of the nodes in the graph that significantly improves the performance and enables us to cope with arbitrary network topologies. The latter allows us to bound the complexity of the algorithm to the size of the mapped area and not to the length of the trajectory as it is the case with both previous approaches. We implemented our technique and compared it to multi-level relaxation and Olson's algorithm. As we demonstrate in simulated and in real world experiments, our approach converges faster than the other approaches and yields accurate maps of the environment.



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