This paper examines the impact of hypersonic threat on evolution U.S. missile defense. The article analyzes specifics this threat, related doctrinal and practical changes, describes characterizes planned defense architecture, forecasts prospects for its implementation strategic situation. author comes to a conclusion that – counter-hypersonic capabilities are aimed at countering posed by interm...

ABSTRACT The addition of wedge-like fairings onto the side missiles and space launch vehicles, to shield devices such as cameras reaction jet nozzles, creates additional drag, particularly when in supersonic hypersonic freestream flow. An experimental computational study was performed obtain aerodynamic data on simple representative configurations test accuracy theories for drag increment due t...

The weapon target assignment is an important problem in modern air defense combat with multiobjects and fighters. The weapons units arrange is a dynamic and complex process, for saving weapons resources and attacking target effectively, the weapon target assignment model satisfies expected damage probability, the performance analysis such as target threat degree, the weapon attack priority and ...

INTRODUCTION Under a Small Business Innovative Research program sponsored by the Missile Defense Agency, Pacific Advanced Technology (PAT, the parent company to Gas Imaging Technology, LLC) is developing an approach to infrared spectral imaging that will enable production of a much smaller, more robust, lower cost optical imaging system for the Smart LDAR community than is available today. This...

Many simulation models require an unsatisfactory amount of time when run on a single processor. Parallelizing these simulations provides the requisite computational resources to achieve the desired running time, but also introduces communications costs that can outweigh the gains of parallelization. Load-balancing algorithms attempt to find the optimal tradeoff between placing simulation object...

Formulation of given computer system or network problems into abstract stochastic models is considered. Generally speaking, model formulation is an art. While analytic results are clearly not powerful enough to provide a "cookbook" approach to modelling, general methodology and difficulties on model formulation are discussed through examinations of various computer system and network models. Th...

Under the sponsorship of the Defense Nuclear Agency, The Johns Hopkins University Applied Physics Laboratory investigated high-frequency ground wave propagation as a nuclear-survivable means of communication for land-mobile missile systems in Europe. Using a frequency band of 20 to 30 MHz and a portable, broadband, discone antenna, high-frequency ground wave propagation characteristics have bee...

1 Department of Computer Science and Engineering, 382 Fitzpatrick Hall, University of Notre Dame, Notre Dame, Indiana 46556, [email protected] Abstract  Safety-critical software is a core topic in courses on “ethics and computing” or “computers and society,” as well as in software engineering courses. The Reagan-era Strategic Defense Initiative (SDI) was the focus of a great deal of technical arg...