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At the age of global positioning system (GPS), Loran-C is still valuable. Loran-C can be used in the new navigation infrastructure both as a backup navigation and a redundant source of GPS integrity information which is provided by the wide area augmentation system (WAAS). The time information, such as WAAS message, can be added into Loran-C by using Loran-C data modulation. In this paper, several...
A Real-time and reliable detection of anomalies is an important and challenging task. Unlike most detection methods based on the statistical analysis of the packet headers (Such as IP addresses and ports), we propose a new nonlinear approach only using network traffic volumes to detect anomalies reliably. Our method is based on the largest Lyapunov exponent and the change-point detection theory to...
Cardiac arrest (CA) can produce complex changes in somatosensory evoked potentials (SSEPs). Somatosensory evoked potentials (SSEPs) indicate the intactness of somatosensory pathways and are commonly used for brain function monitoring during surgeries. Multiresolution biorthogonal wavelet analysis was applied to SSEPs recorded during established CA experiments and post-CA long-term recovery periods...
A novel ESPRIT technique for estimating the delays of Loran-C skywave components is presented. This provides the basis for a new generation of receivers which may adjust its sampling points adoptively to the optimal values in a constantly-changing skywave environment. The signal model is setup using spectral-division technique for isolating groundwave and skywave components of Loran-C signal. The...
Network Control System (NCS) is a synthetic application which combines control science, computer science and network technology. NCS technology is more and more applied in industry control system because of its simple structure, easy maintenance and high reliability. This article reviews the development history of the NCS, and introduces its current research statuses. Based on the basic theories and...
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