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Precise Point Positioning

Question asked by rmartens on Mar 27, 2015

I'm working on developing an integration plan to utilize a GPS device with ArcGIS Collector using an iPad mini.  The GPS device vendor advertises sub-meter accuracy using Precise Point Positioning.  Researching the Internet, I've found some highly technical articles about PPP however, I'm not getting a good answer to my question.  How does PPP work?  It sounds like a software derived real-time correction of raw GPS data.  But I cannot confirm.  Is it as simple as that or are other components required?