Nowadays unmanned air vehicles (UAVs) are used in applications deemed dangerous or unreachable by manned air vehicles. It is estimated that nearly 8000 UAVs (worth $3.9 billion) were produced worldwide between 1994 and 2003 . Their applications have been widespread and included: the agricultural industry, environmental control, mineral exploration, news broadcasting, unexploded mine exploration and other military related applications . Furthermore the design of UAVs has been widespread ranging from simple fixed-wing aircraft [3, 4] to complex quadrotor air vehicles [5, 6]. One of the reasons behind this growing interest, especially in the military industry, is that UAVs are relatively cheap to manufacture in comparison to current fighter aircraft.
KeywordsFault Detection False Alarm Rate Sensor Fault Condition Monitoring System Military Industry
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