国产接收机在形变监测应用中的可靠性分析——以新丰江水库为例

Reliability Analysis of Homemade Receivers in the Application of Deformation Monitoring:Taking the Xinfeng River Reservoir as an Example

以国产华测N72型接收机为例,探究国产GPS接收机在形变监测领域应用的可行性。选取广东省地震局河源站与新丰江水库的两个站点数据,采用对比研究的方法,从数据的完整性、抗多路径效应、接收机信噪比、基线长度较差以及数据噪声处理后的均方差数值等方面,对华测N72接收机与徕卡接收机所测数据解算,同IGS全球站点数据质量分析报告中反映的平均数据质量比较。研究表明,该接收机能满足形变监测的要求,同时该种数据质量评价方法能够为国产仪器性能检测提供技术参考,改进原有的评价方案。

The feasibility of the application of domestic GPS receiver in the field of deformation monitoring is studied in this paper, taking the N72 type domestic receiver of HUACE as an example. First, the data of the two stations of the Heyuan and the Xinfeng river bank of the Guangdong Seismological Bureau are selected. Then the integrity of the data, the anti multipath effect, the signal to noise ratio of the receiver, the poor baseline length and the mean square variance after the processing of the data noise are analyzed. Finally, the data quality measured by the HUACE receiver and the Leica receiver are calculated, compare it with the average data quality reflected in the data quality analysis report of the global IGS site. The following results are obtained for the performance of the N72 type receiver through various indexes： Therefore, the receiver can meet the requirements of deformation monitoring. At the same time, this data quality comparison method can provide technical reference for the performance testing of domestic instruments, and improve the original evaluation scheme.