نتایج جستجو برای: missile

تعداد نتایج: 5631  

1998
Steven Gordon Jonathan Billington

In this paper the communication mechanisms of a missile engagement simulator are modelled and analysed. The simulator is developed as a testing platform for missile guidance and control algorithms. The simulation uses concurrency and remote execution concepts to enhance performance. Coloured Petri nets are a well suited formal approach for modelling and analysis of these concepts. Design/CPN is...

2012
Gene Hudgins Keith Poch Juana Secondine

The TENA SDA has developed and validated a common architecture called TENA, which provides for real-time software system interoperability using the TENA Middleware, as well as interfaces to existing range assets, C4ISR systems, and simulations. The TENA Middleware, currently at Release 6.0.3, has been used by the range community for testing, evaluation, and feedback in many major exercises sinc...

2006
FUMIAKI IMADO TAKESHI KURODA

This paper shows a method to obtain the exact solution for a missile and an aircraft differential games which minimizes and maximizes the essential pay-off of the problem: the miss distance, without employing any linearized approximation. For this purpose, we introduced the concept of energy maneuverability. Once the families of optimal terminal surfaces are obtained, the proposed method can so...

2011
Jinhua Wu Junwei Lei Wenjin Gu Jianhong Shi

Based on previous work, a Nussbaum gian controller is proposed to solve the unknown input direction problem of a large family of supersonic missiles. Also considering the one order dynamic characteristic of actuator , the uncertainties of nonlinear missile system, which is assumed to satisfy the socalled bounded uncertainty condition, are coped by the adopting of integral action and backsteppin...

2004
Duane C. Tate

Naval warfare is shifting from an almost exclusive deep water, open ocean engagement to a littoral environment where high-value surface ships are forced to operate in close proximity to land, exposing those ships to a new, significant threat the high speed, sea skimming missile launched from coastal defenses, mobile land launchers, and patrol craft and maritime aircraft operating close to shore...

1996
Mance E. Harmon

A new algorithm, advantage learning, is presented that improves on advantage updating by requiring that a single function be learned rather than two. Furthermore, advantage learning requires only a single type of update, the learning update, while advantage updating requires two different types of updates, a learning update and a normilization update. The reinforcement learning system uses the ...

Journal: :Computers & Security 2014
Dorothy E. Denning

This essay offers a broad view of active defense derived from the concept of active air and missile defense. This view admits a range of cyber defenses, many of which are widely deployed and considered essential in today’s threat environment. Instead of equating active defense to hacking back, this wider interpretation lends itself to distinguishing different types of active defense and the leg...

2012
Paul Zarchan

This paper addresses the issue of predicting where a boosting threat missile will be several minutes in the future. The prediction issue is important for missile defense because it can be a key factor in determining how heavy an exoatmospheric interceptor has to be. Simplified examples are presented comparing the effectiveness of two prediction methods in terms of accuracy and robustness. Final...

2005
N. Patel A. J. Chipperfield A. J. Keane

The traditional approach to improving the lethality of a missile has been to concentrate efforts in the guidance and control systems to improve accuracy and agility. In this paper, we consider how optimizing the endgame, the final few milliseconds before detonation, can yield improvements in overall lethality. As there is likely to be uncertainty in both the target parameters and missile coordi...

2014
Kuan Waey Lee William H. Moase Andrew Ooi Chris Manzie

A novel optimisation framework using an adjoint cost sensitivity calculation, and integrating computer simulations of fluid dynamics, rigid body dynamics and control is proposed. A generic tail-fin steered missile under closed-loop control is used to show that the framework is able to generate a detailed geometrical tail-fin design and tune control performance parameters that are directly relat...

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