Research On Target Location And Tracking Of Passive Sensor Array Based On Random Finite Set

The multi-sensor array uses a specific partition structure to detect the time difference of the passive signal,the phase difference and the Doppler frequency shift of the external radiation radar signal to achieve target positioning and tracking.This incomparable advantage,such as special scenes with obstructions,underwater,dark environment,etc.,application backgrounds include,civilian use:car whistle,personnel sound positioning,night mobile sound source positioning and other scenes;national defense security:battlefield The tracking and estimation of the sound source signal or the external radiation radar signal is mainly through the acquisition of the target measurement,and the fusion and filtering of the obtained measurement.Here,the label random finite set theory and Bayesian inference are used to jointly solve the problem of passive target positioning and tracking.This article works as follows:(1)Aiming at the dynamic target in the clutter environment,the target’s passive signal is used to estimate the target’s trajectory and state variables,and a Gibbs Generalized Labeled Multi-Bernoulli(Gibbs-GLMB)multi-sound layout positioning and tracking method is proposed.First,the sound source signal are detected by the sensor,and time difference of arrival(TDOA)and angle of arrival(AOA)are used as measurements.Secondly,based on the Labeled random finite set theory,a centralized fusion process is performed on multiple measurement information,and combined with Gibbs-GLMB,Finally,through 100 Monte Carlo simulation experiment analysis and comparing the GLMB filter,the tracking performance of the two methods is close in this experiment.Relatively speaking,the Gibbs-GLMB runs more efficiently and runs the preliminary GLMB algorithm with accuracy.(2)Study on the structure and formation of resolvable group targets.In this section,after analyzing the structure and formation characteristics of group targets,we elaborated what is the structure and formation of group targets and their similarities and differences.Then,according to the characteristics of the two,methods are provided to determine whether the structure and the state of the group target have changed during the movement.(3)Research on Doppler measurement and tracking method based on external radiation radar.The Doppler measurement of multiple targets is detected by the sensor array,and a centralized fusion scheme of Doppler measurement using GLMB filter is proposed.The experiment uses three transmitters and one receiver,combined with the GLMB algorithm to design a solution.Finally,the feasibility of the method is verified by the GLMB filter.