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Multi-sensor data fusion based on electro-optical tracking system
Zhang Jin; Lu Yu; Wang Wanping; Zhang Yong; Wu Qinzhang
Volume7383
2009
Language英语
Indexed ByEi
Subtype会议论文
AbstractThe modern electro-optical (EO) measurement and tracing system usually has different kind of EO sensors that can get measurement of the target at the same time. The traditional tracking system of electro-optical measurement device mainly relies on single sensor that has better precision, and switches to other sensors while tracking is unstable. However, it brings on unstable tracking performance and dramatic decrease of tracking precision while switching among different sensors that have different measurement accuracy. To overcome the disadvantage of the conventional tracking method, a federated Kalman filter algorithm based on multi-sensor fusion of several sensors in EO tracking system is proposed. The local filters deal with the target track from each sensor, then the synthetic target estimation is made according to the sensor fusion of local estimation. Then the wEight factor is assigned to each local filter using the fuzzy logic technique by analyzing the covariance of target estimation. The wEight factor represents the degree of performance of the local estimation and shows the relationship between each sensor. The simulations with Monte Carlo methods show that the proposed algorithm is effective in optoelectronic tracking system especially in the situation of switching among different sensors, and the precision is also superior to the traditional single sensor tracking algorithm.; The modern electro-optical (EO) measurement and tracing system usually has different kind of EO sensors that can get measurement of the target at the same time. The traditional tracking system of electro-optical measurement device mainly relies on single sensor that has better precision, and switches to other sensors while tracking is unstable. However, it brings on unstable tracking performance and dramatic decrease of tracking precision while switching among different sensors that have different measurement accuracy. To overcome the disadvantage of the conventional tracking method, a federated Kalman filter algorithm based on multi-sensor fusion of several sensors in EO tracking system is proposed. The local filters deal with the target track from each sensor, then the synthetic target estimation is made according to the sensor fusion of local estimation. Then the wEight factor is assigned to each local filter using the fuzzy logic technique by analyzing the covariance of target estimation. The wEight factor represents the degree of performance of the local estimation and shows the relationship between each sensor. The simulations with Monte Carlo methods show that the proposed algorithm is effective in optoelectronic tracking system especially in the situation of switching among different sensors, and the precision is also superior to the traditional single sensor tracking algorithm.
Conference NameProceedings of SPIE
Conference Date2009
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7514
Collection光电测控技术研究室(三室)
Corresponding AuthorZhang Jin
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Zhang Jin,Lu Yu,Wang Wanping,et al. Multi-sensor data fusion based on electro-optical tracking system[C],2009.
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