Howtosignalprocessing
Latest articles - page 2
How to implement a 3rd order Butterworth IIR allpass filter with perfectly flat frequency response?
What is IIR Butterworth filter?How does the Butterworth filter work?How do you filter an IIR? What is IIR Butterworth filter?The Butterworth filter ...
Find impulse response and frequency response
How do you calculate impulse response from frequency response?Is frequency response and impulse response the same?How do you find the frequency respo...
What happens to sidebands when they enter negative frequencies?
What is the meaning of negative frequency in Fourier transform?What are the sideband frequencies?Do you need to have both sidebands in order to recei...
N-th Power Non-linear Transforms
Which is non-linear transforms?Can matrices represent non-linear transformations?What is non-linear transformation in image processing? Which is non...
Z domain transfer function including time delay to difference equation
How do you find the difference equation from Z-transform?What is Z domain transfer function?Why is Z 1 delay? How do you find the difference equatio...
Correlation and ratio between two signals?
How do you calculate the correlation between two signals?Why do we need a correlation between two signals?What is meant by correlation of signals?Wha...
Combining audio and image filters in matlab
How do you mix two signals?How to combine two signals in Matlab?How to remove noise from an image in Matlab? How do you mix two signals?The simplest...
Finding the carrier frequency of a NBFM signal
How do you calculate the frequency of a carrier signal?What is the frequency of the carrier in the frequency modulation experiment?What is the value ...
Efficient way to calculate $n$ first elements of cross-correlation using FFT
How do you find cross-correlation with FFT?How to calculate cross-correlation?What is cross-correlation in frequency domain?What is the difference be...