摘要
本文根据GPS接收机伪距测量的原理,以GPS接收机的载波噪声功率密度比(C/N0)为基础,分析压制干扰对GPS接收机伪距测量精度的影响。若要在干扰环境下提高GPS的定位精度,必须采取措施提高GPS接收机的抗干扰能力,如采用外部导航辅助等。
The influence of jamming to pseudo-range measurement precision of GPS receiver is analyzed on the basis of density ratio of carrier noise power of GPS receiver according to the theory of GPS receiver pseudo-range measurement. To improve positioning precision of GPS under the circumstance of jamming, the measures to improve anti-jamming ability of GPS receiver should be taken, for example, outer navigational aid, etc.
