Francisco Leffler, articles - page 11

Components FFT Phase interpretation of input signal with non-integer number of cycles in FFT window
FFT Phase interpretation of input signal with non-integer number of cycles in FFT window
How many phases are there in FFT?What is the phase of FFT?What is windowing in FFT? How many phases are there in FFT?FFT consists of five major comp...
Point Why should I scale the fft using 1/N?
Why should I scale the fft using 1/N?
What is scaling in FFT?What is meant by n point FFT?Why is FFT divided by length?Why is FFT multiplied by 2? What is scaling in FFT?The Fast Fourier...
Signal Intuitive meaning of complex time domain signal representation (quadrature sampling)
Intuitive meaning of complex time domain signal representation (quadrature sampling)
What is quadrature sampling?What is time-domain representation of signal?What is quadrature signal?What do you understand a time-domain and frequency...
Fourier Inverse discrete FFT in python, multiple times?
Inverse discrete FFT in python, multiple times?
How do you find the inverse of a discrete Fourier transform?What happens if we apply DFT twice to a signal?What happens if you Fourier transform twic...
Values Why are we always interested in mean-squared distortion?
Why are we always interested in mean-squared distortion?
What is the reason to use mean squared error?What is the advantage of MSE?Do we want high or low MSE?Why do we square the difference of the error bet...
Time LTI, causal, discrete time system output
LTI, causal, discrete time system output
What is the output of LTI system?What is the condition for a discrete time LTI system to be causal?What is LTI discrete time system?Which of the foll...
Domain Finding the time domain equation corresponding to a given DFT
Finding the time domain equation corresponding to a given DFT
What is the time domain equation?How do you find DTFT from DFT?How do you convert time domain to frequency domain in fft?What is DFT in frequency dom...
Image Image resizing and interpolation
Image resizing and interpolation
Image interpolation occurs when you resize or distort your image from one pixel grid to another. Image resizing is necessary when you need to increase...
Stft Invertibility of Time-Dependent Fourier Transform
Invertibility of Time-Dependent Fourier Transform
What is inverse short time Fourier transform?What are the limitations of Fourier transform of an analog time limited signal?Is STFT invertible that i...