Questions tagged [systemresponse]

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How to set the sampling frequency for this filter+

I need to make a passive LP anti-aliasing filter(recommended cut off freq.). Filtered signal from an hotwire-anemometer will be measured by DAQ has 100Meg input impedance. The thing is that my ...
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2answers
63 views

A very basic question about response time of an instrument

Regarding a temperature transducer, what is meant by response time in this context? It says it can be set to < 30 ms or < 300 ms. Is there any trade of between choosing low or high response time?...
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0answers
27 views

Find impulse response for given difference equation

I have trouble understanding this. I am given this difference equation: $$y[n+2]-3y[n+1]+2[n] = 2u[n+1] -2u[n]$$ and I need to find the response for Kronecker delta function. I can do z transform ...
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1answer
61 views

Why a system is causal if the impulse response is zero for \$t<0\$?

I was reading a definition that Suppose \$h(t)\$ is the impulse response of any system \$Y\$, then the system is causal if and only if \$h(t)=0\$ for \$\forall t<0\$ I know what a causal ...
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1answer
91 views

Find the transfer function given responses

We have an open loop system with an input u , a transfer function G(s) and an output y. We apply the following inputs $$u_i(t)=\sin(ω_it), i=1,2,...6 $$ and get the following responses These are of ...
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1answer
722 views

RLC Response (Overdamped, Underdamped, and Critically damped)

Ive got a question about identifying the overdamped, underdamped, and critically damped waveforms of an RLC circuit. From my (very basic understanding), underdamped decays while oscillating. ...
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1answer
45 views

Impulse response of a LTI TD system

Why the impulse response of this system: \$y(n)=\sum_{|k|\leq3}^{}x(n-k)\$ is: \$h(n)=\sum_{|k|\leq3}^{}\delta(n-k)\$ and the impulse response of this one: \$y(n)=\sum_{k=0}^{+\infty}x(n-k)\$ is:...
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1answer
379 views

How to find the step and impulse response of a circuit with a diode

I have a circuit similar to the following: simulate this circuit – Schematic created using CircuitLab I am trying to find the impulse and step response mathematically. I know I can split the ...
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3answers
653 views

How is the impulse response related to pole/zero-plot?

I have trouble understanding how you can from a pole/zero-plot say something about the impulse response. For instance I have 2 poles in (-5 +/- 8 jw) and a zero in 0. How would I know, from just ...
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7answers
396 views

Understanding Lead in a causal system

I've gone through school and done all the work but looking back at it i still don't quite get it. The rule is current in a capacitor leads and in an inductor lags. The inductor makes perfect sense ...