User`s guide

RMS
5-380
parameter to None.) For sample-based inputs, the running RMS for each
channel is initialized to the value in the corresponding channel of the current
input. For frame-based inputs, the running RMS for each channel is initialized
to the earliest value in each channel of the current input.
As in basic operation, length-M 1-D vector inputs and sample-based length-M
row vector inputs are both treated as M-by-1 column vectors.
Example The RMS block in the model below calculates the running RMS of a
frame-based 3-by-2 (two-channel) matrix input,
u. The running RMS is reset at
t=2 by an impulse to the block’s
Rst port.
The RMS block has the following settings:
•
Running RMS =
•
Reset port = Non-zero sample
The Signal From Workspace block has the following settings:
•
Signal = u
•Sample time = 1/3
•Samples per frame = 3
where
u = [6 1 3 -7 2 5 8 0 -1 -3 2 1;1 3 9 2 4 1 6 2 5 0 4 17]'
The Discrete Impulse block has the following settings:
•
Delay (samples) = 2
•Sample time = 1
•Samples per frame = 1
The block’s operation is shown in the figure below.