| 多普勒耦合下的TOA多目标跟踪 |
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| 引用本文： | 孙文,高林,魏平,廖红舒.多普勒耦合下的TOA多目标跟踪[J].信号处理,2018,34(7):757-765. |
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| 作者姓名： | 孙文 高林 魏平 廖红舒 |
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| 作者单位： | 电子科技大学信息与通信工程学院 |
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| 基金项目： | 中央高校基本科研业务费项目(ZYGX2015J022) |
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| 摘 要： | 在一些发射窄带信号的声呐系统中，由于多普勒维度的分辨率较低，因此该类系统无法提供性能较好的多普勒信息。而在此情况下可以获得精度较高的信号到达时间(Time of Arrival, TOA)估计。此外，在某些多普勒容错信号如线性调频信号中，往往会出现距离 多普勒耦合(Range Doppler Coupling， RDC TOA)现象。本文将距离 多普勒耦合现象建模至目标量测模型中，并且利用迭代的多目标多伯努利(Multi object Multi Bernoulli, MeMBer)滤波器完成多站被动声呐系统基于TOA量测的目标跟踪。仿真结果证明了本文所提出算法的性能。
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| 关 键 词： | 信号到达时间 距离-多普勒耦合 多目标多伯努利 目标跟踪 |
| 收稿时间： | 2018-02-13 |
Multiple Target Tracking under Range-Doppler Coupling |
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| Affiliation: | School of Information and Communication Engineering, University of Electronic Science and Technology of China |
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| Abstract: | Due to the low resolution of Doppler dimension, the sonar system that transmits narrow band signals could not provide better performance Doppler information. However, in this case, an accurate estimation of the time of arrival (TOA) of the signal can be obtained. In addition, the Range-Doppler coupling phenomenon often occurs in the Doppler fault tolerant signals, such as linear frequency modulated (LFM) signals. In this paper, the distance Doppler coupling phenomenon is modeled into a target measurement model, and the iterative Multi-object Multi-Bernoulli (MeMBer) filter is designed to accomplish the target tracking based on TOA measurement in multi station passive sonar system. The performance of the proposed algorithm is verified via simulations. |
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