Multifault Isolation in Linear Networks by the Method of Joint Signature.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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A study was made to isolate one and two component faults in simple linear networks by the method of joint signature of order two whereby two measurements of a failed network are coded to all possible combinations of two component values which will produce that fault with all other elements at nominal value. Two additional measurements were obtained, a new joint signature of order two generated, and the faulty component set was selected as the fault pair with the same values at both joint signatures. The method involves numerous solutions of sets of nonlinear equations. By assuming many values of a failed network function the equations were presolved on a one time only basis for a network. One and two component faults were simulated in two simple low pass filter networks. the highest success rate in isolating faults was approximately 80. Author
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