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impulse response

   Also found in: Acronyms, Wikipedia 0.01 sec.
impulse response [′im‚pəls ri‚späns]
(control systems)
The response of a system to an impulse which differs from zero for an infinitesimal time, but whose integral over time is unity; this impulse may be represented mathematically by a Dirac delta function.


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Economic systems are not amenable to the sort of laboratory analysis that may be applied to physical systems, but an investigator of the stock market may detect narrow pulses of increased (or decreased) rate of return in the time series of daily rates of return for the stock market and then observe the behavior of the subsequent daily returns, thus employing a synthetic impulse response analysis.
Using the vector autoregression model and the impulse response function, this study investigates house price diffusion among Australia's state capital cities, examining the response of one market to the innovation of other markets and determining the lagged terms for the maximum absolute value of the other markets' responses.
If we know the impulse response of an interconnect, sometimes called the Green's Function, we can use this as a behavioral model to predict how any arbitrary, time domain signal might interact with the interconnect.
 
 
 
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