提高GPS导航定位精度的方法——电波折射修正

The Method of Radio Wave Refraction Correction for Improving the Accuracy of GPS Navigation and Location

目前 ,GPS全球定位系统在军、民各方面的用途越来越广泛 ,但是 ,由于空中大气介质的不均匀性使得电波传播速度减慢 ,射线产生弯曲 ,从而产生折射误差。因此要提高GPS的定位导航精度 ,就必须进行电波折射修正。提出了利用地面气象参数的电波折射误差快速算法 ,并进行了精度检验。

The GPS is abroad used in the army and the people. The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium. The refraction error is produced. The radio wave refraction correction for improving the accuracy of GPS navigation and location is necessary. Both the quick-algorithm of radio wave refraction correction by the ground meteorological parameters and its accuracy are presented and checked in the paper, respectively.