Joint Bearing and Range Estimation of Multiple Objects from Time-Frequency Analysis
AbstractDirection-of-arrival (DOA) and range estimation is an important issue of sonar signal processing. In this paper, a novel approach using Hilbert-Huang transform (HHT) is proposed for joint bearing and range estimation of multiple targets based on a uniform linear array (ULA) of hydrophones. The structure of this ULA based on micro-electro-mechanical systems (MEMS) technology, and thus has attractive features of small size, high sensitivity and low cost, and is suitable for Autonomous Underwater Vehicle (AUV) operations. This proposed target localization method has the following advantages: only a single snapshot of data is needed and real-time processing is feasible. The proposed algorithm transforms a very complicated nonlinear estimation problem to a simple nearly linear one via time-frequency distribution (TFD) theory and is verified with HHT. Theoretical discussions of resolution issue are also provided to facilitate the design of a MEMS sensor with high sensitivity. Simulation results are shown to verify the effectiveness of the proposed method. View Full-Text
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Liu, J.-C.; Cheng, Y.-T.; Hung, H.-S. Joint Bearing and Range Estimation of Multiple Objects from Time-Frequency Analysis. Sensors 2018, 18, 291.
Liu J-C, Cheng Y-T, Hung H-S. Joint Bearing and Range Estimation of Multiple Objects from Time-Frequency Analysis. Sensors. 2018; 18(1):291.Chicago/Turabian Style
Liu, Jeng-Cheng; Cheng, Yuang-Tung; Hung, Hsien-Sen. 2018. "Joint Bearing and Range Estimation of Multiple Objects from Time-Frequency Analysis." Sensors 18, no. 1: 291.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.