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Oscillating system via negative feed back?
The Barkhaus criterion for system with positive feedback (being \$B(s)\$ the feedback network transfer function and \$A(s)\$ the gain network transfer function) afirms that for a system to keep ...
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Impulse & Frequency Response Help
Suppose that 2 systems are connected in cascade; i.e., the output of S1 is the input to S2. The 2 systems are specified as follows:
S1: y1[n] = x1[n] + x1[n-1] + x1[n-2]
S2: y2[n] = x2[n] + x2[n-1]
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