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The satellite signals are always blocked by obstructions in urban canyons, therefore multi-constellation global navigation satellite system (GNSS) performs poor. Quantitative comparison of the performance of different satellite navigation systems can provide a basis to analyze their advantages and disadvantages. This paper proposes a fuzzy comprehensive evaluation (FCE) theory to quantitatively evaluate...
The paper proposes a Ka band low noise amplifier (LNA) using 70nm GaAs metamorphic high electron mobility transistor (mHEMT). An ultra low noise three stage amplifier demonstrated an average noise figure of 1.1dB between 24GHz and 30GHz, an average small signal power gain of 27dB, a compact chip area of 1.5mm2 (with dicing streets) and a power consumption of around 80mW@1.5V power supply. The LNA...
Set-associative instruction caches achieve low miss rates at the expense of significant energy dissipation. Previous energy-efficient approaches usually suffer from performance degradation and redundant extension bits. In this paper, we propose a Way History Oriented Low Energy Instruction Cache (WHOLE-Cache) design for single issue and in-order execution processors. The WHOLE-Cache design not only...
In this paper, a unique Combined Lateral Vertical RESURF (CLAVER) LDMOS structure is proposed for breakthrough performance. The structure uses a secondary RESURF design to terminate in the vertical direction to yield a much improved performance trade-off. The proposed device uses standard process steps available in integrated technology platforms to give a breakdown as high as 150 V with ground-breaking...
Recently, there has been increasingly interest in hosting desktop applications in virtual machine environment and accessing them with thin-client devices. However, the interactive performance in such scenario has not been fully investigated yet. We thus measure the performance of the interactive desktop system hosted by Xen VMM. Our experimental results show that with heave workload VMs coexisting...
With the deeply research on intrusion detection techniques and the widely use of intrusion detection products, the study of evaluation techniques of intrusion detection systems became important. In the paper, relative works of the evaluation of intrusion detection systems was introduced. The primary aspects of intrusion detection systems in an evaluation were discussed. An evaluation system for intrusion...
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