Battle Experiments of Naval Air Defense with Discrete Event System-based Mission-level Modeling and Simulations

Author(s):  
Jeong Hoon Kim ◽  
Chang Beom Choi ◽  
Tag Gon Kim

The modern naval air defense of a fleet is a critical task dictating the equipment, the operation, and the management of the fleet. Military modelers consider that an improved weapon system in naval air defense (i.e. the AEGIS system) is the most critical enabler of defense at the engagement level. However, at the mission execution level, naval air defense is a cooperative endeavor of humans and weapon systems. The weapon system and the command and control (C2) structure of a fleet engage in the situation through human reporting-in and commands, as well as weapon deployments. Hence, this paper models the combination of the human and the weapon systems in naval air defense by covering the C2 hierarchy of the fleet, as well as the weapon systems of warships. After developing this mission-level model, we perform battle experiments with varying parameters in the human and weapon aspects. These battle experiments inform us of the impact of the changes in the human and the weapon systems. For example, the speed of incoming missiles is a critical parameter for a fleet’s survival; yet the decision-making speed is another outstanding parameter, which illustrates that there is more to improve than the weapon system when considering the mission level. This modeling and these experiments provide an example, suggesting a method of combining the human C2 and the weapon systems at the mission level in the military domain.

Author(s):  
Carl R Parson ◽  
John O Miller ◽  
Jeffery D Weir

This research develops a discrete event simulation to investigate factors that affect key Air Force (AF) metrics for gauging the health of the AF spares supply chain and the impact on maintaining the mission capability of individual weapon systems. We focus on the unscheduled maintenance actions at a single air base for a single weapon system – the B-1 Bomber. A notional fleet of 16 aircraft at a single air base is modeled based on historical supply and maintenance data. To identify and quantify the effects of various factors, an experimental design is used for analyzing the output of our high-level discrete event simulation. This exploration shows we successfully capture several factors that significantly impact the key metrics used for the B-1 and have the potential to significantly increase mission capability for this weapon system.


Author(s):  
Jon R. Lindsay

This chapter investigates the Combined Air Operations Center (CAOC), the analogue to the Fighter Command Ops Room in the modern U.S. Air Force. The air force formally designates the CAOC as a weapon system, even as it is basically just a large office space with hundreds of computer workstations, conference rooms, and display screens. The CAOC is an informational weapon system that coordinates all of the other weapon systems that actually conduct air defense, strategic attack, close air support, air mobility and logistics, and intelligence, surveillance, and reconnaissance (ISR). One might be tempted to describe the CAOC as “a center of calculation,” but modern digital technology tends to decenter information practice. Representations of all the relevant entities and events in a modern air campaign reside in digital data files rather than a central plotting table. The relevant information is fragmented across collection platforms, classified networks, and software systems that are managed by different services and agencies. Thus, in each of the four major U.S. air campaigns from 1991 to 2003, CAOC personnel struggled with information friction. They rarely used the mission planning systems that were produced by defense contractors as planned, and they improvised to address emerging warfighting requirements.


Author(s):  
Benjamin Sheffield ◽  
John Ziriax ◽  
M. David Keller ◽  
William Barns ◽  
Douglas Brungart

Despite attempts to limit noise exposure, noise-induced hearing loss remains prevalent in the military. Both hearing loss and the noise itself can lead to communication issues which could negatively impact operational performance. This study builds upon a series of experiments examining the relationship between reduced speech intelligibility and performance in a naval command and control environment by equipping Navy watch standers with hearing loss simulators that control speech intelligibility in real time as they were engaged in a simulated operational scenario. This effort focused on the effects that a Sailor with impaired hearing might have on unimpaired shipmates and how the mission might specifically be impacted. Results showed that as speech intelligibility decreased for the impaired watch stander perceived workload increased in an unimpaired shipmate and the latency of the crew to respond to incoming missile threats and a direct order to kill an enemy ship increased significantly.


2011 ◽  
Vol 204-210 ◽  
pp. 862-865
Author(s):  
Peng Fei Peng ◽  
Zhong Liu ◽  
Jun Jiang

The basic composing and functions of underwater autonomous weapon system are analyzed in the paper. With researching on the process of action, the concept model of underwater autonomous weapon system is built up. The impact control method is deeply analyzed on the emphasis, and the model of impact process is put forward. The results of numerical simulation indicate that the impact process model and control method are effectual which can provide reliable theory for farther research on optimization control of system.


The violent and sudden overthrow of governments has caught the attention of many scholars from various disciplines and placed the incidence of coups at the center of such studies. The result is the emergence of a rich literature that has used a multitude of methods and factors to explain the incidence of coups and control of the military. Although the interest in the incidence of coups and coup-proofing has waxed and waned depending on the waves of democratization and occurrence of the coups, the literature continues to evolve as the recent scholarship has introduced different variables to understand coups. Parallel with coup research, scholars also have started to look into the other ways that a military interferes in politics as well as the impact of coups on other issues, such as democratization and military effectiveness. A military can interfere in politics in subtle ways, which can be within the bounds of the legal order of the state. What is more, even if the military engages in direct disobedience, such as mutinies, these acts do not necessarily turn into an attempt to overthrow the government. Thus military mutinies have started to draw attention. Especially the impact of loyalty and disobedience of militaries on the success and failure of civil unrest has become an important research area following the Arab Spring, and the effects of past coups, the threat of coups, and coup-proofing on other issues, such as democratization and military effectiveness, have become another research avenue within the literature. This literature focuses on how coups and coup-proofing have an overarching effect on the militaries and the political structure of states. The fear of coups can shape the democratization path and the choices that decision makers have. It has a direct impact on military policies, which can end up decreasing military effectiveness. Therefore, this article mainly focuses on the recent scholarship to present the most recent debates in the field. To this end, in the first section, the article presents a list of articles that present a general overview of the field and how the debates have changed over the years. In the second section, we will focus on the various ways that a military interferes with politics and debates on Controlling the Military. The third section delves into the causes of coups and presents a wide range of factors and approaches in understanding coups. The fourth section focuses on the overlooked aspect of military behavior: mutinies and rebellions. The fifth section brings all the previous sections together and investigates the impact of coups and rebellions on Democratization and Military Effectiveness. The final section provides an overview of the Datasets on coups and military participation in politics.


2021 ◽  
Vol 8 (2) ◽  
pp. 205395172110378
Author(s):  
Albert Doja ◽  
Laurent Capocchi ◽  
Jean-François Santucci

The ambition and proposal for data modeling of myths presented in this paper is to link contemporary technical affordances to some canonical projects developed in structural anthropology. To articulate the theoretical promise and innovation of this proposal, we present a discrete-event system specification modeling and simulation approach in order to perform a generative analysis and a dynamic visualization of selected narratives, aimed at validating and revitalizing the transformational and morphodynamic theory and methodology proposed by Claude Lévi-Strauss in his structural analysis of myth. After an analysis of Lévi-Strauss’s transformational methodology, we describe in detail how discrete-event system specification models are implemented and developed in the framework of a DEVSimPy software environment. The validation of the method involves a discrete-event system specification simulation based on the extension of discrete-event system specification models dedicated to provide a dynamic Google Earth visualization of the selected myth. Future work around the discrete-event system specification formalism in anthropology is described as well as future applications regarding the impact of computational models (discrete-event system specification formalism, Bayesian inferences, and object-oriented features) to new contemporary anthropological domains.


2014 ◽  
Vol 556-562 ◽  
pp. 6407-6413
Author(s):  
Bo Wei Zhao ◽  
Fa Xing LU ◽  
Xiao Wei Tang

According to the problems of island air defense, an air defense autonomous weapon system carried by a floating platform on the water is proposed. Compared with the traditional land-based air defense weapons, this weapon system has higher security and mobility. On the other hand, the waves would have a greater impact on the stability of weapons platforms. In order to demonstrate the feasibility of the weapon system in a variety of error conditions, the combat system model facing with the whole process from the sensors finding the target to the air defense weapons capturing the target. At the same time, the model of the chain of system accuracy is proposed by adding the various error sources generated by the waves and the system itself to the model. The quantitative assessment of the impact on accuracy system by each source of error is implemented with the system simulation method. Finally, the feasibility of using the weapons on the actual combat is demonstrated with the results of the accuracy analysis .


2020 ◽  
Vol 25 (1) ◽  
pp. 58-62
Author(s):  
Mircea Vladu ◽  
Ioan-Dan Popa

AbstractThe physiognomy of the combined operations recorded essential changes at the beginning of the 21st century, due to the impact of the scientific and technical revolution in the military field, materialized in the production of new generation’s weapons with particularly destructive characteristics (Vladu & Popa, 2016). The emergence of new advanced capabilities for conducting air operations, as well as the use of military robots and intelligent ammunitions in joint operations led to the implementation of the “lightning success” concept by the forces of modern armies. In this respect, we consider that a particularly important role in achieving “lightning success”, by the forces of the modern armies, is played by the main characteristics of adversary general protection system, particularly by the weaknesses of the fortification system which have not been able to provide optimal conditions for protection for the command and control systems, fighting and supporting forces, as well as for public administration authorities and the civilian population.


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