Effect of GNSS receiver carrier phase tracking loops on earthquake monitoring performance

This research focuses on the performance of GNSS receiver carrier phase tracking loops for early earthquake monitoring systems. An earthquake was simulated using a hardware simulator and position, velocity and acceleration displacements were obtained to recreate the dynamics of the 2011 Tohoku earthquake. Using a software defined receiver, GSNRx, tracking bandwidths of 5, 10, 15, 20, 30, 40 and 50Hz along with integration times of 1, 5 and 10ms were tested. Using the phase lock indicator, an adaptive tracking loop was designed and tested to maximize performance for this application.