基于岭估计理论实现GPS快速定位研究

针对在短时间内 GPS观测方程的法方程容易形成病态的实际 ,探讨用岭估计理论消除其病态性的方法 ,然后用 LAMBDA方法确定其整周模糊度。实验证明 ,对于单频 GPS接收机 ,在 1 min左右 ,利用该技术即可正确确定整周模糊度 ,从而实现厘米级定位

Study of the Implementation of GPS Rapid Positioning Based on Ridge Estimation Theory

Aiming at the ill condition easily occurred in the normal equation of GPS observation equations in short time observation, the correlated study is performed. The Ridge Estimation Theory is used to eliminate the ill condition of the normal equation, and the LAMBDA method is used to fix the integer ambiguity.The corresponding experiments have been executed based on these techniques.The experiments results show that, for single frequency GPS receiver, the initialization can be finished in 1 min and several centimeter-level of positioning accuracy is achieved.