Build a Bursting Sweep

The SDG1000 family of Function Generators can’t be programmed to burst a frequency sweeping signal (like a Chirp waveform used in radar, sonar or laser systems)     

They can, however, be loaded with an Arbitrary Waveform and be programmed to output the waveform based on an internal, external, or manual trigger.

When an SDG1000 is loaded with an appropriate waveform, connected to a trigger, and programmed to burst the wave, the instrument outputs a sweeping signal (a “Chirp” waveform).

Siglent’s EASYWAVEX software is designed to generate and write waveforms to Siglent’s Function Generators. Additionally, the software can read waveforms from both function generators and Oscilloscopes.

Of particular interest is EASYWAVES’s Equation Editor. As its name suggests, input can be entered into the editor in the form of an equation and the editor will generate a plot. The resulting “wave” can then be loaded into the Function Generator. The figure below illustrates using the Equation Editor to generate a sweeping wave form

The algorithm to generate the wave is highlighted here.

It should be mentioned that the line 

                                          range (1, 1000)

Sets up a loop that uses 1000 steps to increment the variable x from 1/1000 to 1.

When this waveform is loaded into an SDG1000 and the instrument is set up to burst 1 cycle triggered by an external event, the sweeping wave is produced