Algorithms for detecting the difference between two signals

1. How do you find the difference between two signals?
2. How do you compare similarity between two signals?
3. How do you measure signal error?
4. How do you add two signals together?

How do you find the difference between two signals?

function [ diff ] = FindDiff( signal1, signal2 ) %FINDDIFF Finds the difference between two signals of equal frequency %after an appropritate time shift is applied % Calculates the time shift between two signals of equal frequency % using cross correlation, shifts the second signal and subtracts the % shifted signal ...

How do you compare similarity between two signals?

Cross-correlation is a measure of similarity between two signals.

How do you measure signal error?

The error signal is defined as the difference between the input variable and the feedback variable,(5.1)e(t)=xi(t)−xf(t)(5.2)E(s)=Xi(s)−Xf(s).

How do you add two signals together?

The sum of two continuous time signals 𝑥₁(𝑡) and 𝑥₂(𝑡) can be obtained by adding their values at every instant of time. Likewise, the difference of two continuous time signals 𝑥₁(𝑡) and 𝑥₂(𝑡) can be obtained by subtracting the values of one signal (say 𝑥₂(𝑡)) from another signal (say 𝑥₁(𝑡)) at every instant of time.