Ideal

Low-Pass Filtering of not evenly sampled signal
What happens when a signal is sampled at less than the Nyquist rate?Why ideal low-pass filter is not possible?Why is a low-pass filter not physically...
Consider an ideal low pass filter $H(\omega)$, and the input to this filter is the periodic square wave $x(t)$. Find the output $y(t)$
What is an ideal filter and find impulse response of an ideal low-pass filter?What is ideal low-pass filter in frequency domain?What does an ideal lo...
Is ideal LPF a LTI system? And is it time invariant?
It is an ideal LPF filter which is pulse in frequency domain, and a sinc function in time domain. Is it still time invariant? Yes, the transfer functi...
Why are ideal filters not particularly useful/ hard to do?
Why are ideal filters not used?What is drawback of ideal filter?What is the disadvantage of ideal low-pass filter?Why is ideal low-pass filter imposs...
Ideal BandPass Filter
What is an ideal bandpass filter?What makes an ideal filter?What is ideal bandwidth of high-pass filter? What is an ideal bandpass filter?An ideal b...
Transient cancellation in non causal filtering
Why ideal filters are non causal?Is an ideal low pass filter causal?What is FIR in digital signal processing? Why ideal filters are non causal?Since...
Why we need distances in Ideal LPF?
What is an ideal low-pass filter?What are the effects of applying ideal low-pass filter?Why are ideal filters not physically realizable?Does low-pass...
Is Ideal LPF BIBO unstable?
Is Ideal low pass filter Bibo stable?Is ideal filter stable?Why is ideal low pass filter not realizable?Why is ideal filter unstable? Is Ideal low p...
Should I use ideal or non-ideal filters for offline filtering?
Why are ideal filters not used?What is the difference between ideal filter and practical filter?Why ideal low-pass filter is a non-causal system?Whic...