User`s guide

3 Working with Signals
3-18
The block displays the label Ts or Tf, followed by a two-element vector. The
first (left) element is the period of the signal being measured. The second
(right) is the signal’s sample time offset, which is usually
0, as explained in
“Sample Time Offsets” on page 3-9.
For sample-based signals, the value shown in the Probe block icon is the
sample period of the sequence, T
s
. For frame-based signals, the value shown in
the Probe block icon is the frame period, T
f
. The difference between sample
rates and frame rates is explained in “Sample Rate and Frame Rate Concepts”
on page 3-16.
Probe Block Example: Sample-Based. The three Probe blocks in the sample-based
model below verify that the signal’s sample period is halved with each
upsample operation: The output from the Signal From Workspace block has a
sample period of 1 second, the output from the first Upsample block has a
sample period of 0.5 seconds, and the output from the second Upsample block
has a sample period of 0.25 seconds.
Probe Block Example: Frame-Based. The three Probe blocks in the frame-based
model below again verify that the signal’s sample period is halved with each
upsample operation: The output from the Signal From Workspace block has a
frame period of 16 seconds, the output from the first Upsample block has a
frame period of 8 seconds, and the output from the second Upsample block has
a sample period of 4 seconds.