High Precision Performance Measurement

[Jason Lin]

How to track movement of race car on track, drone maneuver in sky, or athlete sprinting on football field for performance analysis?

A simple way may be using RTK GPS.

But how accurate is it?

For accuracy and consistency check, we used one antenna with signal splitter feeding signal to two $50 NS-HP RTK capable GPS receivers, driving on open sky road to log NMEA output for analysis. NMEA result when converted to KML and measured on Google Earth, maximum deviation of two tracks is less than 1 centimeter!

With such cost-effective precision measurement tool, how can you make use of it to improve your performance measurement?

NMEA log files and converted KML files for this experiment is available here: http://navspark.mybigcommerce.com/content/Two_NS_HP_Cmp.zip