Discrete rms

1. How do you find the RMS of a discrete signal?
2. What is the meaning of RMS?
3. What does the RMS value tell you?
4. Is STD the same as RMS?

How do you find the RMS of a discrete signal?

But you always can obtain a true recursive formula for the RMS value by squaring, multiplying by T, adding the value of the new squared sample, substracting the first squared sample, and then dividing and taking the square root back.

What is the meaning of RMS?

The root mean square (RMS or rms) is defined as the square root of the mean square, i.e. the arithmetic mean of the squares of a given set of numbers.

What does the RMS value tell you?

What is RMS value? (& why should we care?) RMS or root mean square current/voltage of the alternating current/voltage represents the d.c. current/voltage that dissipates the same amount of power as the average power dissipated by the alternating current/voltage.

Is STD the same as RMS?

With RMS, we square the data points; with standard deviation, we square the difference between each data point and the mean.