Howtosignalprocessing
- What is the physical significance of impulse response?
- What is impulse response in simple words?
- How is the impulse response of a real system measured?
- What is the difference between impulse response and system response?
What is the physical significance of impulse response?
The impulse response of a system is important because the response of a system to any arbitrary input can calculated from the system impulse response using a convolution integral.
What is impulse response in simple words?
Impulse response represents the effects of unit shocks in the variable of a system after some periods. Impulse response functions (IRFs) are used to evaluate the effectiveness of a policy change. An impulse response refers to the reaction of any dynamic system in response to some external change.
How is the impulse response of a real system measured?
The impulse responses are usually measured using either Exponential Sine Sweep (ESS) or Maximum Length Sequence (MLS) signals. The theory behind MLS generation and use is well developed and does not involve computational problems.
What is the difference between impulse response and system response?
Definition: The impulse response of a system is the output of the system when the input is an impulse, δ(t), and all initial conditions are zero. Definition: The step response of a system is the output of the system when the input is a step, H(t), and all initial conditions are zero.
