单频单历元短基线GPS整周模糊度解算的比较

摘要

In the paper,the mathematical model of single frequency single epoch GPS ambiguity resolution for short baseline is deeply analyzed,and the methods for settling ill-condition of single epoch normal e-quation are discussed on the basis of the above analysis. Then,several methods of single frequency single epoch GPS ambiguity resolution are put forward and compared. The success rates of these methods for pro-cessing GPS ambiguity are contrastively analyzed. Finally,we come to the conclusion that adopting addi-tional coordinate precision constraint of fixed initial point and at the same time making use of TIKHONOV regularization method can effectively enhance the success rate of single epoch GPS ambiguity solution.%在对单频单历元短基线GPS整周模糊度解算的数学模型进行深入分析的基础上，探讨了解决单历元法方程病态性的方法，进而提出几种单频单历元模糊度解算的方案，并对其模糊度解算成功率进行对比分析。最后通过比较分析得出同时采用附加起算点坐标精度约束和使用TIKHONOV正则化方法，可有效提高单频单历元GPS整周模糊度解算的成功率。