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韩崇昭

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期刊论文

A Fast Approach for Track Initiation and Termination

韩崇昭Zhu Hongyan Han Chongzhao Han Hong

CHINESE JOURNAL OF ELECTRONICS 13 (2): 325-328, 2004.,-0001,():

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摘要/描述

Track initiation and termination is an important function in multi-target tracking (MTT), it is a decision part for establishing the records of the new targets and terminating the unwanted records of the inexistent targets when they leave the surveillance region. But in the heavy cluttered environment, there exists so called "incomplete data problem", due to the unknown state of the target and the sequence of measurements which originate from the target. Because the EM algorithm is an efficient means to solve the "incomplete data problem", a fast track initiation and termination approach applicable to engineering is presented, which combines the sequential probabilistic ratio test (SPRT) with recursive expectation maximization (EM). Here, track initiation and termination is modeled as a hypothesis testing problem. And aiming at the computational difficulty of the likelihood function due to the unknown target state and the sequence of measurements which originate from the target, the recursive EM-based formula of likelihood function is introduced. It gives an efficient solution to track initiation and termination by processing the measurement data sequentially, and its recursive form can meet the real-time demand. The simulation results indicate that the proposed method performs well for track initiation and termination, especially in heavy cluttered environment.

【免责声明】以下全部内容由[韩崇昭]上传于[2005年01月19日 17时50分52秒],版权归原创者所有。本文仅代表作者本人观点,与本网站无关。本网站对文中陈述、观点判断保持中立,不对所包含内容的准确性、可靠性或完整性提供任何明示或暗示的保证。请读者仅作参考,并请自行承担全部责任。

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