Flight Vehicle System Identification

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Flight Vehicle System Identification

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Author : Ravindra V. Jategaonkar
language : en
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
Release Date : 2015-02-16

Flight Vehicle System Identification written by Ravindra V. Jategaonkar and has been published by AIAA (American Institute of Aeronautics & Astronautics) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-16 with Technology & Engineering categories.

Flight Vehicle System Identification

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Author :
language : en
Publisher:
Release Date : 2004

Flight Vehicle System Identification written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Flight Vehicle System Identification

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Author : Ravindra V. Jategaonkar
language : en
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
Release Date : 2006

Flight Vehicle System Identification written by Ravindra V. Jategaonkar and has been published by AIAA (American Institute of Aeronautics & Astronautics) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.

This valuable volume offers a systematic approach to flight vehicle system identification and exhaustively covers the time domain methodology. It addresses in detail the theoretical and practical aspects of various parameter estimation methods, including those in the stochastic framework and focusing on nonlinear models, cost functions, optimization methods, and residual analysis. A pragmatic and balanced account of pros and cons in each case is provided. The book also presents data gathering and model validation, and covers both large-scale systems and high-fidelity modeling. Real world problems dealing with a variety of flight vehicle applications are addressed and solutions are provided. Examples encompass such problems as estimation of aerodynamics, stability, and control derivatives from flight data, flight path reconstruction, nonlinearities in control surface effectiveness, stall hysteresis, unstable aircraft, and other critical considerations.

Flight Test System Identification

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Author : Roger Larsson
language : en
Publisher: Linköping University Electronic Press
Release Date : 2019-05-15

Flight Test System Identification written by Roger Larsson and has been published by Linköping University Electronic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-15 with Science categories.

With the demand for more advanced fighter aircraft, relying on unstable flight mechanical characteristics to gain flight performance, more focus has been put on model-based system engineering to help with the design work. The flight control system design is one important part that relies on this modeling. Therefore, it has become more important to develop flight mechanical models that are highly accurate in the whole flight envelope. For today’s modern fighter aircraft, the basic flight mechanical characteristics change between linear and nonlinear as well as stable and unstable as an effect of the desired capability of advanced maneuvering at subsonic, transonic and supersonic speeds. This thesis combines the subject of system identification, which is the art of building mathematical models of dynamical systems based on measurements, with aeronautical engineering in order to find methods for identifying flight mechanical characteristics. Here, some challenging aeronautical identification problems, estimating model parameters from flight-testing, are treated. Two aspects are considered. The first is online identification during flight-testing with the intent to aid the engineers in the analysis process when looking at the flight mechanical characteristics. This will also ensure that enough information is available in the resulting test data for post-flight analysis. Here, a frequency domain method is used. An existing method has been developed further by including an Instrumental Variable approach to take care of noisy data including atmospheric turbulence and by a sensor-fusion step to handle varying excitation during an experiment. The method treats linear systems that can be both stable and unstable working under feedback control. An experiment has been performed on a radio-controlled demonstrator aircraft. For this, multisine input signals have been designed and the results show that it is possible to perform more time-efficient flight-testing compared with standard input signals. The other aspect is post-flight identification of nonlinear characteristics. Here the properties of a parameterized observer approach, using a prediction-error method, are investigated. This approach is compared with four other methods for some test cases. It is shown that this parameterized observer approach is the most robust one with respect to noise disturbances and initial offsets. Another attractive property is that no user parameters have to be tuned by the engineers in order to get the best performance. All methods in this thesis have been validated on simulated data where the system is known, and have also been tested on real flight test data. Both of the investigated approaches show promising results.

Aircraft And Rotorcraft System Identification

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Author : Mark Brian Tischler
language : en
Publisher: AIAA (American Institute of Aeronautics & Astronautics)
Release Date : 2006

Aircraft And Rotorcraft System Identification written by Mark Brian Tischler and has been published by AIAA (American Institute of Aeronautics & Astronautics) this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Aeronautics categories.

Although many books have been written on the theory of system identification, few are available that provide a complete engineering treatment of system identification and how to successfully apply it to flight vehicles. This book presents proven methods, practical guidelines, and real-world flight-test results for a wide range of state-of-the-art flight vehicles, from small uncrewed aerial vehicles (UAVs) to large manned aircraft/rotorcraft.

Identification Modeling And Characteristics Of Miniature Rotorcraft

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Author : Bernard Mettler
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14

Identification Modeling And Characteristics Of Miniature Rotorcraft written by Bernard Mettler and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Technology & Engineering categories.

Identification Modeling and Characteristics of Miniature Rotorcraft introduces an approach to developing a simple and effective linear parameterized model of vehicle dynamics using the CIFERâ identification tool created by the Army/NASA Rotorcraft Division. It also presents the first application of the advanced control system optimization tool CONDUITâ to systematically and efficiently tune control laws for a model-scale UAV helicopter against multiple and competing dynamic response criteria. Identification Modeling and Characteristics of Miniature Rotorcraft presents the detailed account of how the theory was developed, the experimentation performed, and how the results were used. This book will serve as a basic and illustrative guide for all students that are interested in developing autonomous flying helicopters.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1992

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Aeronautics categories.

Identification Des Syst Mes Pour Le D Veloppement Int Gr Des A Ronefs Et Les Essais En Vol

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Author :
language : en
Publisher:
Release Date : 1999

Identification Des Syst Mes Pour Le D Veloppement Int Gr Des A Ronefs Et Les Essais En Vol written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Airplanes categories.

Flight Vehicle System Identification Applied To An Unmanned Aerial Vehicle

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Author : Nolan Drew Cmerek
language : en
Publisher:
Release Date : 2009

Flight Vehicle System Identification Applied To An Unmanned Aerial Vehicle written by Nolan Drew Cmerek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.

Agard Conference Proceedings

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Author : North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development
language : en
Publisher:
Release Date : 1995

Agard Conference Proceedings written by North Atlantic Treaty Organization. Advisory Group for Aerospace Research and Development and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aerodynamics categories.