Reducing multi-path GPS signal errors in Strava under covered walkways
When students walk under the covered walkways on the national campus in Palikir I often see geolocation errors in their activity track: Those long straight spikes in the activity track are probably due to GPS satellite signal echoes off of buildings. These are called multi-path errors. I wanted to see if I could minimize the errors as well as learn how my phone would handle the complex signal environment on campus. Strava I obtained a nice, relatively clean and accurate activity track, no spikes. How does one eliminate spikes in a multi-path environment, or in any environment? Start in a place with a fairly clear view of the sky. I started at the "A" frame in front of the south faculty building as that gave my phone more sky to work with. The geolocation satellites that Strava uses are in orbit around the Earth up in space, your phone needs to "see" the sky to obtain accurate location information. Wait at least 30 seconds after tapping on Record before tapping on ...