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本文对早期地震监测系统中GNSS载波相位跟踪环路的性能进行了研究。利用硬件模拟器对地震进行了模拟,得到了位置、速度和加速度位移以再现地震。使用软件定义的接收器,对多种带宽和频率的地震波进行了测试。利用锁相指示器,设计了一种自适应跟踪环并测试以最大限度地提高该应用程序的性能。
In this paper, the performance of GNSS carrier phase tracking loop in early earthquake monitoring system is studied. The earthquake was simulated with a hardware simulator, and displacement of position, velocity and acceleration were obtained to reproduce the earthquake. Using software-defined receivers, seismic waves of various bandwidths and frequencies are tested. Using the phase lock indicator, an adaptive tracking loop was designed and tested to maximize the performance of the application.