Some double difference data of GPS receiver are applied in the experiment to verify the algorithm.
文中应用经过双差处理后gps接收机的实测数据，实现和验证了该算法的有效性。
The double difference relative location approach (DD) is applied and investigated in this paper in the following three respects.
本论文运用双差法开展了三方面的研究工作。
In addition, the relocation results of the Dayao and Yaoan Earthquake sequences also show that the double difference location method is more effective.
同时，姚安、大姚地震序列的重定位结果也说明双差定位法是一种比较好的地震定位方法。
The azimuth can be determined by fixing two GPS in a certain distance along the longitudinal vector and making a carrier phase double difference between them.
如果沿载体纵向相距一定距离放置两个GPS天线，则在载体上两个天线载波相位之间求差可确定载体的方位。
The principle and key programs of the Double Difference Algorithm have been briefly introduced in the paper and with the problems in applying the technique to relocate earthquake discussed.
文章对双差地震定位法的原理及其主要程序进行了简要的介绍，并对该方法在实际应用中的一些特点和需注意的问题进行了讨论。
Several typical combinations of double-difference ambiguities are analyzed from the definition of the double-difference ambiguity.
从双差模糊度的定义出发，分析了双差模糊度组合的几种常用方式；
Several typical combinations of double-difference ambiguities are analyzed from the definition of the double-difference ambiguity.
从双差模糊度的定义出发，分析了双差模糊度组合的几种常用方式；
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