公开(公告)号：US20050264444A1

公开(公告)日：2005-12-01

申请号：US11181410

申请日：2005-07-13

申请人： Richard Sharpe ,  Frederick Nelson ,  Terence Pickett ,  Ronald Hatch ,  Yang Yunchun

发明人： Richard Sharpe ,  Frederick Nelson ,  Terence Pickett ,  Ronald Hatch ,  Yang Yunchun

IPC分类号： G01S19/43 ,  G01S19/44 ,  G01S19/48 ,  G01S5/14

CPC分类号： G01S19/44

摘要： The present invention includes a method for a combined use of a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages associated with the RTK and the WADGPS navigation techniques when used separately are avoided. The method includes using a known position of a user receiver that has been stationary or using an RTK system to initialize the floating ambiguity values in the WADGPS system when the user receiver is moving. Thereafter, the refraction-corrected carrier-phase measurements obtained at the user GPS receiver are adjusted by including the corresponding initial floating ambiguity values and the floating ambiguity values are treated as well known (small variance) in subsequent processes to position the user receiver in the WADGPS system.

摘要翻译： 本发明包括一种组合使用本地RTK系统和区域，广域或全球差分载波相位定位系统（WADGPS）的方法，其中分别使用与RTK和WADGPS导航技术相关的缺点是 避免。 该方法包括当用户接收机正在移动时，使用固定的用户接收机的已知位置或使用RTK系统来初始化WADGPS系统中的浮动模糊度值。 此后，通过包括相应的初始浮点模糊度值来调整在用户GPS接收机处获得的经折射校正的载波相位测量值，并且在随后的处理中将浮动模糊度值视为已知（小的方差），以将用户接收机定位在 WADGPS系统。