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Development of a System Identification Tool for Subscale Flight TestingArustei, Adrian January 2019 (has links)
Aircraft system identification has been widely used to this day in applications like control law design, building simulators or extending flight envelopes. It can also be utilized for determining flight-mechanical characteristics in the preliminary design phase of a flight vehicle. In this thesis, three common time-domain methods were implemented in MATLAB for determining the aerodynamic derivatives of a subscale aircraft. For parameter estimation, the equation-error method is quick, robust and can provide good parameter estimates on its own. The output-error method is computationally intensive but keeps account of the aircraft's evolution in time, being more suitable for fine-tuning predictive models. A new model structure is identified using multivariate orthogonal functions with a predicted squared error stopping criteria. This method is based on linear regression (equation-error). The code written is flexible and can also be used for other aircraft and with other aerodynamic models. Simulations are compared with experimental data from a previous flight test campaign for validation. In the future, this tool may help taking decisions in conceptual design after a prototype is tested.
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Záchranné systémy pro létající drony / Flying drones rescue systemsHájek, Tomáš January 2015 (has links)
This paper addresses the issue of security and integration of UAVs in air traffic operations and analyses possible risks. This work defines methodology to demonstrate airworthiness of the parachute recovery system under extreme climatic conditions. The first part of the methodology deals with the compliance performance requirements in external environment and the second part verifies performance parachute canopy. Methodology developed herein is subsequently verified by practical tests on parachute recovery system Galaxy GBS 10.
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TELEMETRY IN THEATER MISSILE DEFENSE DEVELOPMENTToole, Michael T. 10 1900 (has links)
International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, California / Since the Gulf War, there has been significant interest in Theater Missile Defense
(TMD) resulting in funding growth from tens of millions of dollars at the time of the
Gulf War to $1.7 Billion in 1994. The Ballistic Missile Defense Organization
(BMDO) has developed a Theater Missile Defense test and evaluation program that
will assess technological feasibility and the degree to which system functionality and
performance meet technical and operational requirements. The complexity of the
TMD program necessitates a comprehensive test program which includes flight
testing, ground testing, and modeling and simulation. This article will provide and
overview the requirements and capabilities needed to satisfy these requirements. The
data processing, and telemetry communities will play a major role in providing the
expertise to support the development of the nation’s future Theater Missile Defense
capabilities.
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