Chapter 3: Adding a Signal

The Simulate Signal Express VI simulates a sine wave by default. You can
customize the simulated signal by changing the options in the Configure
Simulate Signal dialog box.
Complete the following steps to create an additional simulated signal that
adds uniform white noise to the sine wave.

1. On the block diagram, use the Positioning tool to select the Simulate
Signal Express VI.

Hold down the <Ctrl> key and click and drag to create an additional
Simulate Signal Express VI on the block diagram. (Mac OS X) Hold
down the <Option> key and drag. (Linux) You also can hold down the
middle mouse button and drag.

2. Release the mouse button to place the copied Simulate Signal Express
VI below the original Simulate Signal Express VI. LabVIEW updates
the name of the copied Simulate Signal Express VI to Simulate
Signal2.

3. Double-click the Simulate Signal2 Express VI to display the
Configure Simulate Signal dialog box.

4. Select Sine from the Signal type pull-down menu.

5. Enter 60 in the Frequency (Hz) text box.

6. Enter 0.1 in the Amplitude text box.

7. Place a checkmark in the Add noise checkbox to add noise to the sine
signal.

8. Select Uniform White Noise from the Noise type pull-down menu.

9. Enter 0.1 in the Noise amplitude text box.

10. Enter -1 in the Seed number text box.

11. In the Timing section, select the Run as fast as possible option.

12. In the Signal Name section, remove the checkmark from the Use
signal type name checkbox.

13. Enter 60 Hz and Noise in the Signal name text box.