As air traffic continues to grow, the Global Navigation Satellite System (GNSS) plays an increasingly important role in enabling the air space to efficiently handle the increase load. In fact, it will be the primary and often the only system capable of supporting key capabilities for the future airspace. However, GNSS is vulnerable to radio frequency interference (RFI) and spoofing, so an alter...

One significant way in which the duplication issue has remained important emerged from the introduction of another factor. By the time of St. Mâlo and the first U.S. formal response to it, the NATO Alliance was also “seized of” concerns about its own military resources and capacities. Having successfully completed the design phase of adapting the NATO Alliance to meet the challenges of the post...

abstract. the main purpose of this paper is investigation and identification the concept of dynamic capabilities and clarifying the relationship between these capabilities with the knowledge management process capabilities. as expected, the results showed a positive relationship between these two concepts. this paper includes three main sections. in first section, we identify the concept of pro...

Typical Specifications (Dual Channel) Parameters / Model # SRF-24120910-D1 SRF-35121010-D1 SRF-77121210-D1 RF frequency 24.150 GHz 35.500 GHz 76.500 GHz Transmitter output power +10 dBm (typical) +10 dBm (typical) +10 dBm (typical) Receiver conversion loss 9 dB (typical) 10 dB (typical) 12 dB (typical) IF bandwidth DC to 100 MHz (minimum) DC to 100 MHz (minimum) DC to 100 MHz (minimum) I/Q Chan...

Lunar laser ranging has provided many of the best tests of gravitation since the first Apollo astronauts landed on the Moon. The march to higher precision continues to this day, now entering the millimeter regime, and promising continued improvement in scientific results. This review introduces key aspects of the technique, details the motivations, observables, and results for a variety of scie...

BACKGROUND Reviews of the global response to the 2009 pandemic of influenza A/H1N1 affirmed the importance of assessment of preparedness and response capabilities. DESIGN The U. S. Centers for Disease Control and Prevention (CDC) and partners developed the National Inventory of Core Capabilities for Pandemic Influenza Preparedness and Response (http://www.cdc.gov/flu/international/tools.htm) ...

Learning is a fundamental component of intelligence, and a key consideration in designing cognitive architectures such as Soar [Laird et al., 1986]. This chapter considers the question of what constitutes an appropriate general-purpose learning mechanism. We are interested in mechanisms that might explain and reproduce the rich variety of learning capabilities of humans, ranging from learning p...

A unique feature of ultra wideband (UWB) technology lies in its dual capabilities of communication and ranging. As UWB pulses are very narrow, very strict synchronization requirements are incurred as timing errors induce severe performances degradation. In this work, using second order statistics of the received signals, we present the Ziv-Zakai lower bound (ZZLB) for the time delay estimation ...