Mr. Paul M. Christian Profile

Paul M. Christian

at Miltec Corp

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Author

Publications (2)

Proceedings Article | 24 July 2002 Paper

Aerospace Toolbox--a flight vehicle design, analysis, simulation, and software development environment II: an in-depth overview

Paul Christian

Proceedings Volume 4745, (2002) https://doi.org/10.1117/12.475857

KEYWORDS: Monte Carlo methods, Aerospace engineering, Software development, Aerodynamics, Atmospheric modeling, Data modeling, Missiles, Electromagnetic simulation, Human-machine interfaces, Computer simulations

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Proceedings Article | 19 September 2001 Paper

Aerospace Toolbox---a flight vehicle design, analysis, simulation ,and software development environment: I. An introduction and tutorial

Paul Christian, Randy Wells

Proceedings Volume 4367, (2001) https://doi.org/10.1117/12.440056

KEYWORDS: Monte Carlo methods, Aerospace engineering, Computer simulations, Global Positioning System, Software development, Filtering (signal processing), Electromagnetic simulation, Human-machine interfaces, Atmospheric modeling, Aerodynamics

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This paper presents a demonstrated approach to significantly reduce the cost and schedule of non real-time modeling and simulation, real-time HWIL simulation, and embedded code development. The tool and the methodology presented capitalize on a paradigm that has become a standard operating procedure in the automotive industry. The tool described is known as the Aerospace Toolbox, and it is based on the MathWorks Matlab/Simulink framework, which is a COTS application. Extrapolation of automotive industry data and initial applications in the aerospace industry show that the use of the Aerospace Toolbox can make significant contributions in the quest by NASA and other government agencies to meet aggressive cost reduction goals in development programs. The part I of this paper provides a detailed description of the GUI based Aerospace Toolbox and how it is used in every step of a development program; from quick prototyping of concept developments that leverage built-in point of departure simulations through to detailed design, analysis, and testing. Some of the attributes addressed include its versatility in modeling 3 to 6 degrees of freedom, its library of flight test validated library of models (including physics, environments, hardware, and error sources), and its built-in Monte Carlo capability. Other topics to be covered in this part include flight vehicle models and algorithms, and the covariance analysis package, Navigation System Covariance Analysis Tools (NavSCAT). Part II of this paper, to be published at a later date, will conclude with a description of how the Aerospace Toolbox is an integral part of developing embedded code directly from the simulation models by using the Mathworks Real Time Workshop and optimization tools. It will also address how the Toolbox can be used as a design hub for Internet based collaborative engineering tools such as NASA's Intelligent Synthesis Environment (ISE) and Lockheed Martin's Interactive Missile Design Environment (IMD).

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