This paper applies Shannon theory, which was established to describe a discrete general communications system, to a general identification system that is affected by noise (and jamming), the probability of a discrete event occurring (such as an object in a certain region of space), and most importantly, the entropy and dissonance of the information source. This paper analyzes the cause of the m...

Gallium nitride (GaN) RF power transistor and MMIC technologies have become sufficiently mature and reliable in the last few years that there are now large numbers of fielded devices in both military and commercial applications. Wide bandgap technology is now finding extended use in switching, control and low noise applications. Cree’s GaN on silicon carbide (SiC) MMIC processes provide high dr...

Description: Ad hoc networking is a new area in wireless communications that is going to prevail in the next few decades. Understanding the full potential of this technology will lead to new applications both civilian and military, such as military ad hoc wireless networks, environmental sensor networks, car-based ad hoc networks, biomedical networks and many more. This text takes a " bottom-up...

Extending the range of tactical military networks that are confined to a local geographic area by using small aircraft to relay traffic to geographically distant areas is a topic of interest in military network technology development. Highly directional antennas, incorporated into avionics pods that attach modularly to an aircraft fuselage, can provide long-range, interference-resistant communi...

Communications and communications protocols will play an important role in mobile robot systems able to address real world applications. A poorly integrated "stack" of communications protocols, or protocols which are poorly matched to the functional and performance characteristics of the underlying physical communications links, can greatly reduce the effectiveness of an otherwise well implemen...

This study contrasts the characteristics of clients using military mental health services in deployed and nondeployed settings, the communications between their mental health providers and commanders, and the impact of mental health services on their military duties. The study explored the rates of command communication and duty restrictions across settings and referral sources. The study used ...

Armed Forces & Society, Vol. 30, No. 2, Winter 2004, pp. 227-254. SEUNG-WHAN CHOI is a postdoctoral fellow at the Centre for Security and Defence Studies, Norman Paterson School of International Affairs, Carleton University in Ottawa, Canada. He will join the faculty of the University of Illinois, Chicago in August 2004. He specializes in international politics (terrorism and international conf...

Information resiliency refers to the continuous availability of uncorrupted mission-critical information to support business or military operations, even under the threat of a cyber attack. An information resilient enterprise will continue to engage in its critical operations, despite the attacker’s attempts to intrude, corrupt or deny service. The manner and efficiency with which the operation...

Networked cooperative personnel and multiple manned/unmanned vehicles play important roles in the Future Combat System (FCS), Future Force Warrior, Future Special Operations Forces (SOF), Land Warrior and Homeland Defense applications. Multi-sensor fusion based navigation and high bandwidth wireless communications are two of the key techniques for these applications. The navigation system is re...

BACKGROUND Over the last decade, suicide rates in the U.S. military have steadily increased, resulting in a call for suicide-related research with military populations. The present project aimed to describe and evaluate the communications (i.e., verbally and in suicide notes) of 13 suicide risk factors in the suicide death investigation files of 98 active duty U.S. Air Force (USAF) members. M...