Application of Variable Random Walk Process Noise to Improve GPS Tropospheric Path Delay Estimation and Positioning at Local and Global Scales

Zachary Young, Nevada Geodetic Lab, Nevada Bureau of Mines and Geology, University of Nevada, Reno, Reno, NV, United States, Geoffrey Blewitt, Nevada Geodetic Laboratory, Nevada Bureau of Mines and Geology, University of Nevada - Reno, Reno, NV, United States and Corne Kreemer, Nevada Geodetic Laboratory, Nevada Bureau of Mines and Geology, University of Nevada - Reno, Reno, United States