Abstract:In order to explore the influence of antenna tilt attitude on multipath delay of satellite signals, the relative position between satellites and tilt antenna is established. According to the comprehensive index of multipath effect, theoretical analysis and experimental verification are carried out. The results show that when the antenna attitude is tilted, the multipath effect obviously increases, the number of effective observations decreases, and positioning accuracy deteriorates. The multipath delay is related to the tilt direction and angle of the antenna and the multipath of satellite signals in different azimuths and altitudes. Delays have different patterns of variation.