Howtosignalprocessing
Rolando Purdy, articles - page 7
How to detect Premature ventricular contractions (PVCs) in a ECG-signal
How do you detect PVCs? How do you detect PVCs?PVCs may be diagnosed during an electrocardiogram (ECG), which is a routine heart test, or through a ...
Is there a way to break down a signal into its respective phases (4 in this case) to be later analysed individually
What does FFT do to a signal?How do you choose a sampling frequency in FFT?How do you calculate FFT of a signal?What is FFT spectrum analysis? What ...
Amplitude reduction of Simple Moving Average on sinusoid
What is the amplitude of the sinusoidal function?What is the effect of the moving average filter?What will be the response of a moving average filter...
Proof that spectrum analyzer measures mathematical Power Spectral Density
Does spectrum analyzer show power spectral density?How is power spectral density calculated?Is power spectral density and power density spectrum same...
Why does this parallel IIR filter have such a weird form?
Why physically realizable and stable IIR filters Cannot have linear phase?Why are IIR filters not stable?What is the problem in impulse invariance me...
First order IIR high pass filter
What is IIR high-pass filter?What is the order of IIR filter?How do you calculate the order of an IIR filter?Is a first order system a low pass filte...
Convolution v.s. Cross Correlation in Digital Image Processing
Cross-correlation and convolution are both operations applied to images. Cross-correlation means sliding a kernel (filter) across an image. Convolutio...
Detect when signal starts oscillating
How do you identify oscillation?What is oscillatory signals?What parameters will you find from the oscillation testing? How do you identify oscillat...
Noise Reduction Moving Average FIR
Does moving average reduce noise?What are moving average filters used for?How do you remove noise from sensor data?Is a moving average a low-pass fil...