Bearings only passive location for UAV in formation flight

Abstract

With the increasing development of UAV technology, UAV formation flight has also changed from single target task execution to multi-target cooperative task execution. When UAV is developing rapidly in the direction of clustering, there are too many external interference factors. Therefore, electromagnetic silence should be maintained for a long time in the whole formation flight, and the number of times when transmitting electromagnetic wave signals to the outside should be reduced as much as possible. Therefore, this paper uses the sine cosine theorem to adjust the position of UAV to the optimal position by using bearings only passive location method to maintain the formation of UAV multi-target flight. In this paper, the cosine theorem and sine theorem are used to locate and optimize the other UAVs that receive signals passively; By enumerating, the corresponding linear equations are listed by using the triangle formed by all UAVs; The position of each UAV shall be adjusted step by step according to the above conclusions, and the remaining UAVs receiving signals passively shall be adjusted to the optimal position to ensure the uniform distribution of nine UAVs on the circumference with a radius of 100m.