一种利用交会角改善双站测向准确性的方法

继2013年印度首颗IRNSS卫星发射后,2014年至2016年陆续发射了7颗自主研制的IRNSS区域导航系统卫星,成功完成七星组网。IRNSS被命名为"印度星座导航"(Navigation with Indian Constellation或Nav IC)。按照设计,这导航卫星完成组网后,将为陆地、空中和海上提供定位和导航服务,覆盖半径1500km,涵盖印度及周边地区,满足民用、安全和国防需求。1系统现状

Method Improving DF Veracity of Two Stations by Using Cut Angle

In virtue of geometric projection, the path difference equation can be obtained which is associated with geometric parameter. Thus, the DF analytic solution for long baseline can be derived based on the path difference and cut angle between two stations. On this basis, a DF formula for two stations, that the format is simple and veracity is also good, can be obtained by approximate reduction. The analysis result shows that using cut angle between two stations can effectively improve the veracity of existence DF solution of two stations.