Cooperative Location Method of Muti-UAV System under Environment of Communication Jamming based on Tri-Layer Trust Model

Muti-UAV System has the characteristics of complex system, and its survivability is affected by location dependability. Global Satellite Navigation System (GNSS) is usually used by low-cost cooperative Multi-UAV system, which is easily being cheated when there are some GPS jammers, especially when there is a deception GPS jammer. Meanwhile Multi-UAV system can improve the responsibility of location by communication, which is also easily being disturbed and cheated. Aiming at the location safety problem of multi-UAV system under deceitful and interferential environment, a new Tri-Layer Trust Model (TLTM) has been established in this paper. In view of the characteristic of multi-UAV's cooperation, there is transaction layer, rating layer and communication layer in TLTM. The trust model can be computed through information of demander, tenderer and the third party. Meanwhile, the best cooperated partner will be selected through the results. The introducing of communication layer simulates the real condition of UAV system under deceitful and interferential information. When there is GPS jammer and communication jamming, it can also provide a safety decision method for multi-UAV system. Simulation results verify that this method could afford a reliable mean of location under deceitful and interferential environment.