National Instruments 373873C-01 用户手册

On the Alignment tab of the Step Setup dialog box, the step computes 
and displays the x and y gain and offset values you need to achieve 
alignment specifications as you drag the signals.

4.

Select Auto - Step from the Mode pull-down menu to align the 
signals. LabVIEW SignalExpress bases this alignment mode on 
built-in algorithms.

The lower graph in the Step Setup dialog box displays the difference 
between the two signals.

5.

On the Input/Output tab, place a checkmark in the Export aligned 
signals checkbox to add the signals to the outputs of the step.

6.

Select the Data View tab to open the Data View.

7.

Click the Add Display button, shown at left, to add a third graph.

8.

Drag the aligned reference and aligned test outputs of the Interactive 
Alignment step to the new graph to view the aligned signals.

9.

Select File»Save Project to save the project.

Some steps, such as the Arithmetic step, can operate on multiple signal 
types. For example, you can use the Arithmetic step to operate on 
time-domain or frequency-domain waveforms. The Arithmetic step 
changes behavior based on the type of input signals you select for the 
step. For example, if you add two time-domain signals, LabVIEW 
SignalExpress adds only their amplitudes. However, if you add two 
frequency-domain phase signals, LabVIEW SignalExpress adds the 
appropriate phase shift.

Refer to the LabVIEW SignalExpress Help for more information by 
selecting Help»LabVIEW SignalExpress Help, clicking the Search tab, 
and entering 

"signal

 

types"

.

You can use LabVIEW SignalExpress to document signals or continue 
analysis in another software application. This section teaches you how to 
export signals, including sending signals to an ASCII file, sending data to 
Microsoft Excel, printing signals, and using the built-in documentation 
feature to document the LabVIEW SignalExpress project.