Method and device for optimising the accuracy of the positioning and/or reduction of the integrity risk of a receiver in a global satellite navigation system

摘要

The method involves determining a deviation error for satellites (RF1-RF4), where the error is dependent on a system parameter, and geometrical adjustment of the satellites relative to a receiver (E). The error is determined from another deviation error by error projection in a coordinate system of the receiver. A value of the parameter is determined by a preset parameter value, and another value is determined by a modified parameter value. The modified parameter value is modified with respect to the preset value such that a small error of the modified value is accepted as true. An independent claim is also included for a device for optimizing accuracy of position determination and/or for reducing integrity risk of a receiver in a global satellite navigation system.