The article is devoted to the problem of ensuring a given level of functional safety of safety critical radio electronic systems at the stage of their system engineering. A special feature of these systems is that the...
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ISBN:
(数字)9781728155661
ISBN:
(纸本)9781728155661
The article is devoted to the problem of ensuring a given level of functional safety of safety critical radio electronic systems at the stage of their system engineering. A special feature of these systems is that their functional safety depends on the reliability of the hardware or software and the efficiency of their behavior algorithms. It should be noted that there are no models, methods and techniques which allow evaluating the level of the safety with a complex consideration of the above mentioned features. The article presents a new characteristic of the safety of behavior algorithms - the frequency of fall into the emergency state and presents new method of synthesis of the safe behavior algorithms for critical application systems. This method allows including a reasonable number of time and functional redundancy into the behavior algorithm to provide the required level of functional safety.
This paper presents the model of radio telemetry system with short-term use and the research of its efficiency indexes. The technique based on scheme of paths method and the mission-related software prototype were app...
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ISBN:
(纸本)9781538625569
This paper presents the model of radio telemetry system with short-term use and the research of its efficiency indexes. The technique based on scheme of paths method and the mission-related software prototype were applied for this task. The software prototype provides real-time solution for multivariatc analysis and parametric synthesis of behavior algorithms of radio telemetry system with short-term use. The features those are critical in terms of evaluating efficiency indexes of such systems are highlighted.
Enhanced network speed and the appearance of various applications have recently resulted in the rapid increase of Internet users and the explosive growth of network traffic. Under this circumstance, Internet users are...
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Enhanced network speed and the appearance of various applications have recently resulted in the rapid increase of Internet users and the explosive growth of network traffic. Under this circumstance, Internet users are eager to receive reliable and Quality of Service (QoS)-guaranteed services. To provide reliable network services, network managers need to perform control measures involving dropping or blocking each traffic type. To manage a traffic type, it is necessary to rapidly measure and correctly analyze Internet traffic as well as classify network traffic according to applications. Such traffic classification result provides basic information for ensuring service-specific QoS. Several traffic classification methodologies have been introduced;however, there has been no favorable method in achieving optimal performance in terms of accuracy, completeness, and applicability in a real network environment. In this paper, we propose a method to classify Internet traffic as the first step to provide stable network services. We integrate the existing methodologies to compensate their weaknesses and to improve the overall accuracy and completeness of the classification. We prioritize the existing methodologies, which complement each other, in our integrated classification system.
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