Howtosignalprocessing
- What is the FFT of a sine wave?
- How to plot sine wave in frequency domain matlab?
- How do you calculate frequency bins in FFT?
What is the FFT of a sine wave?
The FFT. The function fft( ) estimates the coefficients of the Fourier transform, transforming a time-domain signal (i.e., an observed fMRI time series) into a series of sine waves with different amplitudes and phases. Fourier coefficients are complex numbers, with values in the real and imaginary planes.
How to plot sine wave in frequency domain matlab?
in sine function in MATLAB it is always sin(wt). here frequency w is in radian/sec not f (in HZ) so w will give you the no. of the cycle. if you want to use the sin(2*pi*60*t) you can use the sind(2*pi*9.545*t).
How do you calculate frequency bins in FFT?
FFT bins and bin width
The FFT provides amplitude and phase values for each bin. The bin width is stated in hertz. The bin width can be calculated by dividing the sample rate by the FFT length; or by dividing the bandwidth by the number of bins (which is equal to 1/2 the FFT length).
