PDOP

Some Computation Problems about PDOP in Position of Synchronous Satellite

几种无线电观测方法对同步卫星定位中位置几何因子的计算问题

Geometry Orbit Determination of GEO Satellite with Systematic Errors Using PDOP Weight

顾及系统误差的地球静止轨道卫星PDOP值加权几何法定轨

With respect to the chosen constellation cover performance , the PDOP characteristics are calculated .

并且针对所选星座的覆盖性能，仿真给出了区域性覆盖优选星座的PDOP特性。

PDOP Simulation of the Galileo Navigation and Positional System

GALILEO卫星导航和定位系统PDOP仿真

Effects of different distributions of fault satellites on PDOP availability of global navigation constellation are studied .

研究了不同故障星分布状况对全球导航星座PDOP可用性的影响。

The approaches to calculate navigation performance and satellite cost are analyzed , and position dilution of precision ( PDOP ) is selected as the guideline of navigation performance .

阐述了星座导航性能与卫星生产成本的计算方法，并选取定位精度因子（PDOP）作为导航性能指标。

The upper-limit of the positioning dilution of precision ( PDOP ) is an important index to design of a navigation constellation and evaluation of its performance .

定位精度因子（PDOP）上限取值是导航星座设计及其性能评价的基本依据。

The optimal measuring zone under the optimal arrangement of four laser tracking interferometers is discussed , and the distribution of PDOP of the measuring points in 3D space is also given .

研究了系统最佳布局下的最佳测量区域问题，给出了几何精度衰减因子PDOP在三维空间内的变化规律。