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Need for filtering ideal response of filters and impulse response of filters?
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What is the sentences including the word 'realizable'?
One method for creating a realizable approximation to an ideal filter is to truncate this impulse response outside of n ∈ [−M, M ].
Drawbacks of constant k type filters?
Drawback of the constant K type filter is that at the cut of frequency , its attenuation is a steady curve .. quick response is lacking in it an ideal filter should have a sharp response curve.
Why ideal filters are not realizable?
Ideal filters are not realizable because it would require a impulse response that extends from minus infinity to plus infinity, and it would be also a noncausal system. It may be proved on the frequency domain using the Paley-Wiener Criterion, which states that a square integrable magnitude response function |H(f)| is physically realizable if \int_{-\infty}^{+\infty} \frac{| \log_e |H(f)| |}{1+f^2} df < \infty Any ideal filter would require H(f) to have magnitude equals zero in a bandwidth and that would make | \log_e |H(f)| | infinitely large and the condition above would not hold.
What amplification factor value is the ideal for filtering passbands?
One
What is the Difference between ideal and practical low pass filter?
Ideal filters having sharp cut-off & sharp cut-in for LPF & HPF but in practical filters there is some roll-off rate based on the order.
What brand of filters gives a fish the most ideal living conditions?
Eheim canister filters cannot be beat for quality and ease of use. They filter the water excellently. You can find them for a great price online at www.bigalsonline.com
What is the condition of ideal amplification?
full spectrum frequency response no change in wave shape or phase
Why series resonance is termed as selective circuit?
Because they can be used to obtain or get an output (on a series connected resistance with them) for a specific frequency of the input signal. This is the ideal case, but in fact, the resonance circuit passes a band (not a single frequency) of input signals' frequencies to take them at the output terminal. They are also termed as ( filters or filtering circuits ). They are called selective as they function as if they select signals of specific frequencies to be passed to the output.
What is the instantaneous sampling?
Instantaneous sampling is one method used for sampling a continuous time signal into discrete time signal. This method is called as ideal or impulse sampling. In this method, we multiply a impulse function with the continuous time signal to be sampled. The output is instantaneously sampled signal.
Why are blueair filters better than other types?
Blue-air filters are better than other types because it is the ideal choice for asthma and allergies. It generally performs faster filtration and traps up to 6 times more dirt.
What is mencken's claim in portrait of an ideal world?
His claim is that if the population of the world were slightly drunk all the time, the world would be a better place. It was written in response to the Prohibition, so it can be seen as a response to that.
What will be the output of the differentiator if a square wave is put into the differentiator?
infinite positive impulse wave on each leading edge, infinite negative impulse wave on each trailing edge. the rest of the time it is 0V. this assumes an ideal square wave, which I must assume as you did not give rise/fall times or edge slew rates.
