Influence of Jamming to Pseudo-range Measurement Precision of GPS Receiver

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.