http://www.eissq.com/ponthy/On_Mappi...y-preprint.pdf is the link
This is some very impressive work! You've clearly put a lot of effort into this, and it looks very interesting. After reading through the report, I have a few questions about it:
In its' current state, the microprocessor stores the data on an SD card, and then you have to plug the SD card into a computer so Matlab can read it, correct? Would it be possible to output the data directly to a PC/laptop via Matlab rather than storing it on an SD card, in order to have real-time display of the data?
What exactly are the torque and efficiency being mapped against in figures 2 and 3 of the pdf?
Since the data for the different methods is so consistent, why is it still preferred to keep the GPS in the system? Was the data with GPS and DEM considered more accurate?
Do you have a source for the GPS units? I took a quick look for the FV-M8, but only found one for around $100.