Aiming at the problems of single sensor target localization technology being unable to adapt to complex environments and susceptible to external interference, a distributed multi-sensor target joint localization method based on state data covariance cross fusion algorithm is proposed. Observing the position information of target objects through distributed multiple sensors and using the position information as target state data; On this basis, input the target state observation values of each sensor into the Kalman filter for error compensation, in order to improve the accuracy of subsequent target joint positioning; Therefore, the covariance cross fusion algorithm is used to fuse the observation values of each sensor after error compensation, and the fusion value is the final target position, thereby completing the joint target localization. The experimental results show that the intersection to union ratio of the positioning results for 10 target objects is close to 1, and the obtained target object position coordinates are closest to the actual position coordinates of the object. The proposed method has strong anti-interference performance and high accuracy in target localization.
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