Domain

What is the name for the technique of comparing a time domain signal to an expected signal with a sliding window?

What is the name for the technique of comparing a time domain signal to an expected signal with a sliding window?
  1. Is FFT in frequency domain?

Is FFT in frequency domain?

An FFT transform deconstructs a time domain representation of a signal into the frequency domain representation to analyze the different frequencies in a signal. The frequency domain is great at showing you if a clean signal in the time domain actually contains cross talk, noise, or jitter.

Negative What's the meaning of negative frequencies after taking the FFT in practice?
What's the meaning of negative frequencies after taking the FFT in practice?
Why are there negative frequencies in FFT?What does it mean when frequency is negative?What do negative values in FFT mean?What does negative Fourier...
Poles Significance of poles in a Transfer Function
Significance of poles in a Transfer Function
Poles and Zeros of a transfer function are the frequencies for which the value of the denominator and numerator of transfer function becomes zero resp...
Real Why some FFT return complex array, some - mirrored real array?
Why some FFT return complex array, some - mirrored real array?
Why is FFT output mirrored?Is the FFT of a real signal real?Why is FFT two sided?What are the real and imaginary parts of FFT? Why is FFT output mir...