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A New IMM Method for Tracking Maneuvering Target |
Ba Hong-xin①; Zhao Zong-gui②; Yang fei①;Liu Hai-yan① |
①Institute of Command Automation PLA Univ. of Sci & Tech., Nanjing 210007 China;②28th Institute of CETC Nanjing 210014 China |
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Abstract A new IMM algorithm for tracking maneuvering target is proposed, which only uses two models that consist of a CS model and an augmented CV model for interaction. The CS model which uses the state variable with normal acceleration and tangent acceleration is fit for the accurate tracking of coordinated turn movement. This method is not subjected to the limit of the magnitude and change of turn rate, and has more flexibility to uncertain parameters. The simulation shows that this algorithm is superior to the conventional IMM-CV/CT algorithm which uses more than three models for interaction in terms of the accuracy of tracking and adaptation. Because this algorithm can estimate the normal and tangent acceleration, it may be used to implement the tracking for the complexly and highly maneuvering target after appropriate model-set design.
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Received: 30 July 2003
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