排序方式: 共有80条查询结果,搜索用时 15 毫秒
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对野外GPS常要设置的参数DX、DY、DZ、DA、DF与大地坐标(一种二维平面坐标)有区别,GPS所用的WGS84坐标系与我们国家常用的北京54和西安80坐标系所使用椭球体参数有差异,正是由于不同椭球的差异才需要求DX、DY、DZ、DA、DF等参数.利用先进的QT编程技术,将其嵌入到Microsoft visual C... 相似文献
63.
ITRS, PZ-90 and WGS 84: current realizations and the related transformation parameters 总被引:4,自引:0,他引:4
The first results of the International GLONASS Experiment 1998 (IGEX-98) campaign have provided significant material to illustrate
the mutual benefits of the GLONASS system and the realization of the International Terrestrial Reference System (ITRS). A
specific aspect, namely the relationship between the World Geodetic System 1984 (WGS 84) and the PZ-90 system using ITRS as
a primary standard, is investigated. A review of current works is carried out. A transformation strategy is proposed for the
three systems based on recent results from IGEX-98 and an independent set of transformation parameters derived by the Jet
Propulsion Laboratory from ITRF97 and PZ-90 coordinates for 16 global stations.
Received: 9 June 2000 / Accepted: 12 June 2001 相似文献
64.
测绘行业的各种测绘成果采用不同坐标系不利于相关部门规划成果的编制和审批。以湛江市为例,在北京1954坐标系下,采用四参数法,探讨了规划与国土坐标系转换的方法,以期对规划和国土部门间坐标系转换提供参考。 相似文献
65.
RTKGPS测量技术在中国已广泛应用 ,但其测量成果属于WGS - 84坐标系 ,只有将其转换到国家坐标系或地方坐标系中才能使用 ,所以不同坐标系统间转换参数的正确求解是RTKGPS技术应用的关键。介绍了几种RTKGPS测量中坐标转换参数求解的方法及其数学模型 ,并对高程转换的几种数值拟合方法作了简要介绍 相似文献
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Spectroscopic studies have been made of the two Herbig-Haro objects HH84 and HH85. Isocontours of the [SII] emission lines, the radial velocities, and the relative line intensities and electron densities are given for the A, B, C, E clusters of HH84 and the A, B1, and B2 clusters of HH85. Comparisons with earlier results are made. Significant variations in the radial velocities and line widths are observed within the confines of HH84. It is concluded that HH84 may actually be a shock wave at the termination of a collimated outflow, but it is still not known whether this flow is coupled to HH83. HH85 is definitely a part of the HH34 giant outflow. 相似文献
67.
�߳������߲���ת����Ӱ�� 总被引:8,自引:1,他引:7
?????????????????????WGS84????????????????????????????????????????????????????????????????????о???????С??????????????????????????????????????????????????????????????????????????????????????????????????100 km??100 km???Χ?????????????е???????????????????????????????????С?? 相似文献
68.
2000�й��������ϵ������WGS84�ıȽ� 总被引:16,自引:5,他引:11
魏子卿 《大地测量与地球动力学》2008,28(5):1-5
????2000?й???????????CGCS2000????????????????WGS84?????CGCS2000??????????????????GRS80??????2000????GPS?????????????2000.0??????????????CGCS2000??ITRF??£??WGS84????? 相似文献
69.
????WGS84??CGCS2000??????????????????????????????WGS84?????????ITRF?????????????????????????CGCS2000??????????????????????? 相似文献
70.
WGS-84坐标系是目前GNSS测量所采用的坐标系统,哈尔滨城市坐标系是哈尔滨市城建规划和国土管理空间定位的依据。为此,必须进行WGS-84到哈尔滨城市坐标系的坐标转换方法研究与计算,解求准确的坐标转换参数作为HRBCORS的应用参数。 相似文献