Francisco Leffler, articles - page 27

Filters Impulse response resampling IIR aproximation vs windowing
Impulse response resampling IIR aproximation vs windowing
Which is best FIR or IIR?What is IIR system in dsp?Is a Butterworth filter FIR or IIR?Why IIR filters are unstable? Which is best FIR or IIR?The adv...
Signal How to scale a signal to get desired variance [duplicate]
How to scale a signal to get desired variance [duplicate]
How do you rescale standard deviation?What are the types of signal scaling?What is variance in signal processing? How do you rescale standard deviat...
Filter Specifying the frequencies when designing a filter
Specifying the frequencies when designing a filter
What are the design specifications of a filter?How do you filter frequency?How are filters classified based on their frequency response?What is the f...
Poles Why do we put poles close to the zeros in notch filter?
Why do we put poles close to the zeros in notch filter?
The closer we make the pole to the zero, the tighter the response, but also the more precision is needed in a fixed point design. What is the signific...
Fourier Discrete inverse Fourier transform
Discrete inverse Fourier transform
What is the inverse discrete Fourier transform?Is DFT and Idft same?Why is DTFT used?What is the difference between DTFS and DTFT?What is the inverse...
Spectral Power Spectral Density From Variance
Power Spectral Density From Variance
How do you calculate the variance from power spectral density?How do you calculate the density of a power spectrum?Is spectral density variance?How d...
Sync Synchronize a software waveform generator
Synchronize a software waveform generator
What is the sync signal on a waveform generator?Why synchronization is necessary in waveform generator?How do you time synchronize multiple function ...
Band-limited Bounds of the difference of a bounded band-limited function
Bounds of the difference of a bounded band-limited function
What is a band-limited function?Why a signal Cannot be time limited and band-limited at the same time?How do you know if a signal is band-limited?Why...
Wavelet Wavelet transform of a spatial convolution
Wavelet transform of a spatial convolution
Is wavelet transform a convolution?What does the wavelet transform do?What is wavelet transform in DSP?How wavelet transform is used in image process...