Rolando Purdy, articles - page 32

Auto-correlation of the sum of two generic signals
How do you calculate the correlation between two signals?What is auto correlation of signals?How do you calculate autocorrelation?What does ACF measu...
How to calculate wave length
Wavelength can be calculated using the following formula: wavelength = wave velocity/frequency. Wavelength usually is expressed in units of meters. Th...
Spectrum of received signal from radar fm-cw
What is beat frequency how it is used in FMCW radar?What's the difference between FMCW and CW radars?What is CW Doppler radar?How isolation between t...
The Gradient Operator of a Vectorized Image in Matrix Form
What are the gradient operators in image processing?What is the gradient of a vector function?What is the gradient of an image?What is gradient in di...
Extract trend correctly, including most recent values
How do you find the trend value in a time series? How do you find the trend value in a time series?The easiest way to spot the Trend is to look at t...
How to assess perceptual volume from FFT
How do you calculate amplitude from FFT?How do you read frequencies in FFT?What is FFT size in audio? How do you calculate amplitude from FFT?1) Div...
Why does it mean that the process/signal is not stationary when its variance varied with time? [closed]
What does non-stationary signal mean?What are the conditions for a process to be stationary?What does it mean for a process to be stationary?What is ...
4th order butterworth filter using frequency response formula
What is 4th order Butterworth filter?What is the equation for order of Butterworth filter?What is Butterworth frequency response?What is a 4th order ...
Find a stable transfer function $G(z)$ such that $|G(z)| = |H(z)|$
How do you know if a transfer function is stable?How do you find the stability of Z-transform?What is Z in transfer function?What is the condition fo...