LeCroy SDA User Manual

188 SDA-OM-E Rev H
Waveform Sparser Setup
1. In the menu bar, touch Math, then Math setup... in the drop-down menu.
Touch the tab2. for the function (F1 to Fx [The number of math trace
software options loaded on your scope. See specifications.]) yo
s available depends on the
u want to assign the Sparse
menu.
the Sparsing factor field and enter a value, using the pop-up keypad.
r
olate (upsample).
s available depends on the
u want to assign the
de the Source1 field and select an input waveform.
the Filter button in the Select Math Operator
.]
ter a value, using the pop-up numeric keypad, if you want to enter a specific
e, use the Up/Down buttons to increment the displayed value in a 1-2-5
e,
O's processing stream. FastWavePort maximizes data throughput from the acquisition
system to your processing function. It also makes it simple to create these custom processing
functions.
operation to.
3. Touch inside the Source1 field and select an input waveform.
4. Touch inside the Operator1 field and select Sparse from the Select Math Operator
5. Touch inside
6. Touch inside the Sparsing offset field and enter a value, using the pop-up keypad.
Interpolation
Linear interpolation, which inserts a straight line between sample points, is best used to
reconstruct straight-edged signals such as square waves. (Sinx)/x interpolation, on the othe
hand, is suitable for reconstructing curved or irregular waveshapes, especially when the sampling
rate is 3 to 5 times the system bandwidth. The instrument also gives you a choice of Cubic
interpolation.
For each method, you can select a factor from 2 to 50 points by which to interp
Interpolation Setup
1. In the menu bar, touch Math, then Math setup... in the drop-down menu.
Touch the tab for the func2. tion (F1 to Fx The number of math trace
software options loaded on your scope. See Specifications.) yo
Interpolate operation to.
3. Touch insi
4. Touch inside the Operator1 field, then touch
menu.
5. Select Interpolate from the Filter submenu.
6. Touch the "Interpolate" tab in the mini setup dialog to the right of the main dialog.
7. Touch inside the Algorithm field and select an interpolation type.
8. Touch inside the Upsample by [Upsampling is the factor by which sampling is increased
field and en
value. Otherwis
sequence.
Fast Wave Port
FastWavePort is a processing function for the LeCroy X-Stream family of digital oscilloscopes
that enables you to insert your own custom processing algorithm, written in the C/C++ languag
into the DS

LeCroy SDA Specifications

General

Brand	LeCroy
Model	SDA
Category	Measuring Instruments
Language	English