利用集群内测距和对目标测向的协同定位方法

doi:10.7527/S1000-6893.2019.23768

Abstract

Abstract: When the relative position measurement accuracy between multiple aircrafts is significantly higher than the absolute positioning accuracy of the aircraft, a relative measurement is added between the aircrafts, and the coordinated processing of the positioning measurement of each aircraft can improve the absolute positioning accuracy. This article aims at the situation that the cluster aircraft cannot measure the distance to the non-cooperative target but can only find the direction. By introducing the mutual ranging between the cluster aircrafts, the positioning accuracy of the cluster aircraft and the non-cooperative target can be improved. For this incomplete relative measurement situation, a cooperative positioning solution method that can improve the positioning accuracy is presented, including the nonlinear static optimization estimation and the linearized least squares estimation method. This coordinated positioning scheme does not need to perform a complete relative position measurement, but can reasonably decompose the ranging and direction finding in the group relative measurement and reduce the requirements for the configuration of aircraft measurement equipment. The validity of the method is verified by the simulation.

Key words: ranging, direction finding, cluster, collaborative positioning, static optimization

CLC Number:

V249.3

ZHONG Rijin, CHEN Qifeng. Cooperative positioning method using distance measurement within a cluster and direction finding of a target[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(S1): 723768-723768.

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Cooperative positioning method using distance measurement within a cluster and direction finding of a target

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