Based on real time clock of GPS system, and by means of absolute time-marker, real time data acquisition between different sites was performed in the form of wireless.
以GPS系统实时时钟为基础，通过对绝对时标加以处理，以无线方式实现了不同站点之间的实时数据采集。
Control and application of satellite formation require measurement of the formation states, including absolute and relative position, attitude and clock bias separately.
编队卫星的控制和应用需要确定编队卫星的运动状态，包括卫星绝对的和相对的位置、姿态以及钟差。
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