Can Any LTI System Be Characterized by Its Impulse Response or Eigenvalues?

machinarium
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Hello everyone, please help me to answer this question.
Is this true that any LTI system can be characterized by either its impulse response or engenvalue?
 
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Yes it is enough to know all the eigenvalues or the impulse response.
 

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Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
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Thread 'Question about the voltage between two charged capacitors'

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