How to generate the shown PPG signal

[GoviRe]

Hello,

How to generate a photodetector output PPG signal as shown here Desired PPGsignal

From the information published here it says the PPG signal shown in the image has three components AC(pulsatile changes),DC and other AC component of ambient light component of 60Hz.

I want to generate this signal and apply filtering techniques for the post process through simualtion instaed working practically on board.

Cansomehelp me with the generation of the this type of signal using NI multisim.

Tahnks in Advacne.

[Fernando_D]

Hello,

Here are some ideas:

Virtual Prototype. If you are familiar with LabVIEW and have a data acquisition device, you could acquire a real PPG signal, save it in a LabVIEW Measurement file (LVM) and then use this real signal in Multisim. If you dont' have data acquisition hardware you could generate the signal in LabVIEW and then save it usign the LVM format. The key here is that Multisim includes a signal source (LVM_VOLTAGE) that can open LVM files.

PWL Modeling. Multisim features a PIECEWISE_LINEAR_VOLTAGE source, this component can read a dataset of time and value pairs. The idea here is that you could write a table with the values of the waveform you need. 

Multisim Custom Simulation Analyses and Instruments. These instruments allow you to expand the functionality of Multisim by providing more analyses and advanced signal generators. 

Hope this helps.