document: Exact analytical model for the AEP of control signals An exact analytical model for the aliasing error probability -LRB- AEP -RRB- in the signature analysis of control signals using a modified signature analyser is presented . The signature analyser used comprises a general-structure two-input compacting module -LRB- TICM -RRB- , which simplifies the motherboard VLSI design by providing a flexible geometry , which could be easily integrated with neighbouring structures . The use of the modified data probe eliminates the ambiguity introduced by the high-impedance state and at the same time retains the same signature of the binary stream . The model specifies algebraically the effects of the TICM architecture , the test pattern length , and the control stream error probabilities . It is proved that the -LRB- hardware -RRB- criterion used for calculating the AEP for the internal - and external exclusive-OR two-input shift registers is not valid for the general case and a new criterion is provided . The results obtained are augmented by two special cases , a case study , and associated simulation
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