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Source: Elementary differential eqution with boundary value problems  by William E boyce. Ricahrd DeDrima
 
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Revision as of 22:25, 10 March 2013

An impulse response, often denoted by h(t), is also called a transfer function or frequency response in frequency domain. It’s the output of In a LTI system when presented with a impulse signal input δ(t). In a LTI systems, impulse response is also equivalent to green’s function used in physics.

General theory of nth order ODE: An nth order linear differential equation is an equation of the form Equation1.png

Divide by Po(t) to get the following form Equation2.png

Has n initial conditions Equation3.png

A theorem states, if the functions p1, p2 …..,pn, and G are continuous on the open interval I, then there exists exactly one solution y = φ(t) of the differential equation (2) that also satisfies the initial conditions (3).

Source: Elementary differential eqution with boundary value problems by William E boyce. Ricahrd DeDrima

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