The measuring accuracy can be improved by integrating FPGA and high precision crystal oscillator. 将FPGA和高精度晶振相结合,可大大提高系统的测量精确度;
Method for Correcting Errors of the GPS-clock Based on the High Precision Crystal Oscillator(PXO) 基于高精度晶振的GPS秒时钟误差在线修正方法
Compared with the solution of using the PPS signal or crystal oscillator as the sync clock, this scheme eliminates the negative effects on the sync precision imposed by the interference and the uncertain drift of the crystal oscillator. 该方案消除了采用PPS信号或晶振作为同步时钟时,由于受干扰和晶振存在不确定漂移等因素对同步精度造成的影响。