摘要
传统GPS定向多采用载波观测量建立观测模型,但其在单历元情况下存在秩亏问题。为避免此问题,文章提出将载波相位和码相位加权后的线性组合用于建立观测模型,在新的GPS定向观测模型中,采用消元处理得到整周模糊度浮点解。实验结果表明该模型可以使整周模糊度浮点解的精度在5周以内,能辅助LAMBDA算法快速确定整周模糊度。
GPS carrier observation matrix rank is deficient for single epoch that exists on conventional GPS orientation determination models. The mixed module with both carrier observation and code observation is a way to get a float ambiguity solution module, using weighting, linear plus elimination process. The results of this study indicate the precision of float ambiguity solutions obtained by the mixed module is in 5 cycles, which can quickly help LAMBDA algorithm estimate correct integer ambiguity resolution.
出处
《电子设计工程》
2011年第6期98-100,共3页
Electronic Design Engineering
关键词
GPS定向技术
GPS定向模型
载波观测量
码观测量
组合建模
GPS orientation determination technology
module in GPS orientation determination
carrier observation
code observation
mixed module
