Satellite communication and navigation for mobile users

Efforts made to utilize space technology for solving communication and navigation problems faced by mobile users in earth orientated situations are outlined. Applications include transoceanic airline communications, reliable long range ship-shore communications, emergency communications in regions with rough terrain, and military operations

Real-time communication over switched ethernet for military applications

Full-Duplex Switched Ethernet is a forecasted new technology for advanced military aircraft system interconnection. However, it was not originally developed to meet the requirements of real-time communications. Therefore, in this paper, we analyze traffic shaping and a priority handling approach over switched Ethernet to achieve reliable transmission with bounded delays that conform to the real-time constraints, required by military applications

SPARCCS Smart Phone Assisted Rapid Command and Control System (Poster)

Military Wireless Communications (MWC)Military Wireless Communications (MWC

Military Values in Law

Congress, for example, takes inappropriate advantage of the tremendous deference given by courts to its constitutional powers to raise and support Armies, to provide and maintain a Navy, and to make Rules for the Government and Regulation of the land and naval Forces.\n In a court-martial involving a military defendant and a civilian victim of sexual assault, application of the psychotherapist-patient privilege raises no difficult issues related to professional military values. When both the victim and the defendant are members of the military, however, the victim\u27s assertion of privilege is at least potentially inconsistent with the victim\u27s professional obligation to place the military\u27s institutional need to discipline misconduct undermining military readiness above an individual desire not to reveal communications concerning the criminal act

Military Space Communications

A worldwide network of military communication satellites is now being deployed to function both as a long-haul strategic trunking system and as a system capable of supporting contingency operations. Another network is under development to handle voice and teletype messages between users with small mobile terminals. Other more specialized satellite systems are well along in the planning stage. This paper describes the evolving deployment and utilization of satellite-based systems and anticipates the trend in future operational capability

Performance analysis of a Master/Slave switched Ethernet for military embedded applications

Current military communication network is a generation old and is no longer effective in meeting the emerging requirements imposed by the next generation military embedded applications. A new communication network based upon Full Duplex Switched Ethernet is proposed in this paper to overcome these limitations. To allow existing military subsystems to be easily supported by a Switched Ethernet network, our proposal consists in keeping their current centralized communication scheme by using an optimized master/slave transmission control on Switched Ethernet thanks to the Flexible Time Triggered (FTT) paradigm. Our main objective is to assess the performance of such a proposal and estimate the quality of service we can expect in terms of latency. Using the Network Calculus formalism, schedulability analysis are determined. These analysis are illustrated in the case of a realistic military embedded application extracted from a real military aircraft network, to highlight the proposal's ability to support the required time constrained communications

The Evolution of Communications in the Military as it Relates to Leadership

Abstract The evolution of communications in the military as it relates to leadership will review the different means and methods of communications that have been used throughout U.S military history. This will be accomplished using a chronological format. Starting in the Revolutionary time when horseback riders and written communications were the primary means for commanders to relay orders to subordinates, through the invention of the telegraph, that was one of the most significant communications methods developed during the first one-hundred years of United States history. From the telegraph to wireless technology and finally to present day and the widespread use of satellite communications. A comparison of the effectiveness between interpersonal communications and technological methods for communicating will be made. Although it is hard to quantify, the effects on leadership will be discussed. This project is a learning experience in military history and technology. It will be interesting to see how communications within the military evolved

Overview of timing/synchronization for digital communications

Systems in general, and switched systems in particular, are explained. It pointed out some of the criteria that greatly influence timing/synchronization subsystem design for a military communications network but have little or no significance for civil systems. Timing techniques were evaluated in terms of fundamental features. Different combinations of these features covered most possibilities from which a synchronous timing system could be chosen

Centralized vs distributed communication scheme on switched ethernet for embedded military applications

Current military communication network is a generation old and is no longer effective in meeting the emerging requirements imposed by the future embedded military applications. Therefore, a new interconnection system is needed to overcome these limitations. Two new communication networks based upon Full Duplex Switched Ethernet are presented herein in this aim. The first one uses a distributed communication scheme where equipments can emit their data simultaneously, which clearly improves system’s throughput and flexibility. However, migrating all existing applications into a compliant form could be an expensive step. To avoid this process, the second proposal consists in keeping the current centralized communication scheme. Our objective is to assess and compare the real time guarantees that each proposal can offer. The paper includes the functional description of each proposed communication network and a military avionic application to highlight proposals ability to support the required time constrained communications