Abstract:UAV (Unmanned Aerial Vehicle) deception technology based on satellite navigation is attracting more and more attention in Modern Navigation Warfare. Among them, repeater deception jamming is more valuable than generative deception jamming in the field of military code navigation, because it does not need to obtain priori information of signal structure. At present, the repeater of military code signal is generally carried out fixed-point static forwarding based on the position coordinates of the receiving antenna. However, this method has low signal confidence and poor jamming effect when spoofing UAV. A time delay control method of repeater deception jamming algorithm is proposed in the paper. The time delay of different satellite signals is calculated according to the requirements of repeater coordinate. And the repeater coordinates can be adjusted in real time according to the deception strategy to improve the success rate of jamming. Finally, the experimental results show that the repeater coordinate error calculated by the proposed algorithm is in the range of meters, which proves the effectiveness of the proposed algorithm.