With the revolution in information technology, we experience profound changes in the nature of our world. Indeed, we live in an information age. The information technology revolution fundamentally changed our lifestyle. For example, our homes operate automatically when no one is at home. The IT revolution made it possible to communicate with someone located on the opposite side of the globe on ...

The U.S. Air Force (USAF) proposes to launch six Milstar Satellites from Cape Canaveral Air Force Station (CCAFS), Florida, using a Titan IV launch vehicle with a Centaur upper stage (Titan IV/Centaur). The primary mission of Milstar is to provide the next generation of Military Satellite Communication (MILSATCOM) systems to complement Navy’s Fleet Satellite Communication System, Air Force’s Sa...

The high increase in the transmission of digital data over secured and unsecured communications channels poses a lot of security and privacy concerns to both the transmitter and the receiver. Many operations engaged today in urban and warfare, be they for construction, monitory of plants, high voltage lines, military, police, fire service, intelligence etc. engages the use of surveillance syste...

PSK is a common modulation format in digital communications. The estimation of modulation parameters is necessary for emitter interception in support of numerous military applications. This paper develops the Cramer-Rao Lower Bound for the modulation parameters of a PSK signal. The modulation parameters considered are the carrier frequency, the symbol time and the signal amplitude. The results ...

Recent advances in wireless and computing technology have led to accelerated efforts to equip soldiers at the tactical level with sophisticated handheld communications devices to share situational awareness data. An important consideration is how to secure these devices, and how to ensure that the users of the devices have not been compromised. This paper presents the details of prototyping act...

Logan Scott is a consultant specializing in radio frequency signal processing and waveform design for communications, navigation, radar, and emitter location. He has more than 24 years of military GPS systems engineering experience. As a senior member of the technical staff at Texas Instruments, he pioneered approaches for building high-performance, jammingresistant digital receivers using larg...

Secret image sharing mechanisms have been widely applied to the military, ecommerce, and communications fields. Zhao et al. introduced the concept of cheater detection into image sharing schemes recently. This functionality enables the image owner and authorized members to identify the cheater in reconstructing the secret image. Here, we provide an analysis of Zhao et al.’s method: an authorize...

The use of the wireless sensor networks (WSNs) should be increasing in different fields (scientist, logistic, military and health, etc.). However, the sensor’s size is an important limitation in term of energetic autonomy, and thus of lifetime because battery must be very small. This is the reason why, today, research mainly carries on the energy management in the WSNs, taking into account comm...

This paper examines a comprehensive set of options for upgrading legacy avionics systems in tactical aircraft. The options have been developed as part of study involving the avionics system of a current military aircraft. Multiple options are considered ranging from minor changes to the legacy system to complete replacement of computers and communications buses with commercial off-the-shelf (CO...