Particle filtering for channel parameter tracking in a noisy shallow ocean environment using a vertical array

X. Zhong, V. N. Hari, W. Wang, H. Wang, X. Shen

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Acoustic signals in a shallow ocean environment are severely distorted due to the time-varying and inhomogeneous nature of the propagation channel. In this paper, a state-space model is introduced to characterize the uncertainties of the shallow ocean and a Rao-Blackwellized particle filter (RBPF) is developed to estimate the model parameters. Since both modal functions and horizontal wave numbers of the channel are assumed unknown, the state-space model has a high nonlinearity and high dimensionality. As the modal functions are linear with the measurements conditioning on the horizontal wave numbers, a Kalman filtering (KF) is employed to marginalize out the modal functions. Hence only the horizontal wave numbers need to be estimated by using a PF. Simulation results show that the proposed RBPF algorithm significantly outperforms the existing approaches.

源语言英语
主期刊名Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
出版商Institute of Electrical and Electronics Engineers Inc.
450-454
页数5
ISBN(电子版)9781467372961
DOI
出版状态已出版 - 23 10月 2015
活动5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015 - Singapore, 新加坡
期限: 1 9月 20154 9月 2015

出版系列

姓名Proceedings of the 2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015

会议

会议5th IEEE Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2015
国家/地区新加坡
Singapore
时期1/09/154/09/15

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