scholarly journals OPTIMUM INSPECTION POLICY FOR LONG SPAN BRIDGE BASED ON FAULT TREE ANALYSIS WITH VISUAL INSPECTION DATA

2011 ◽  
Vol 67 (2) ◽  
pp. 74-91 ◽  
Author(s):  
Kiyoyuki KAITO ◽  
Hidesada KANAJI ◽  
Hiroshi KOBAYASHI ◽  
Nobuhiro MASHIMA ◽  
Hideo OHISHI ◽  
...  
Keyword(s):  
Visual Inspection ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Tree Analysis ◽  
Long Span ◽  
Long Span Bridge ◽  
Inspection Policy ◽  
Inspection Data

Fault Tree Analysis for a Modern Communication System

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Kamal Hamid ◽  
Nadim Chahine
Keyword(s):  
Communication System ◽  
Communication Systems ◽  
Fault Tree ◽  
Fault Tree Analysis ◽  
Theory And Practice ◽  
Tree Analysis ◽  
Satisfactory Performance ◽  
System Components ◽  
Link Budget ◽  
Simulation Results

Wireless communications became one of the most widespread means for transferring information. Speed and reliability in transferring the piece of information are considered one of the most important requirements in communication systems in general. Moreover, Quality and reliability in any system are considered the most important criterion of the efficiency of this system in doing the task it is designed to do and its ability for satisfactory performance for a certain period of time, Therefore, we need fault tree analysis in these systems in order to determine how to detect an error or defect when happening in communication system and what are the possibilities that make this error happens. This research deals with studying TETRA system components, studying the physical layer in theory and practice, as well as studying fault tree analysis in this system, and later benefit from this study in proposing improvements to the structure of the system, which led to improve gain in Link Budget. A simulation and test have been done using MATLAB, where simulation results have shown that the built fault tree is able to detect the system’s work by 82.4%.

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