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Fast direction of arrival algorithm based on vector-sensor arrays using wideband sources
Info
- Title:
- -
- Author(s):
- SUN Guo-cang HUI Jun-ying CHEN Yang
- Affilations:
- DOI:
- -
- Abstract:
- An acoustic vector sensor (AVS) can capture more information than a conventional acoustic pressure sensor (APS). As a result, more output channels are required when multiple AVS are formed into arrays, making processing the data stream computationally intense. This paper proposes a new algorithm based on the propagator method for wideband coherent sources that eliminates eigen-decomposition in order to reduce the computational burden. Data from simulations and lake trials showed that the new algorithm is valid: it resolves coherent sources, breaks left/right ambiguity, and allows inter element spacing to exceed a half-wavelength.
References:
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4. ZOLTOWSKI M D.WONG K T Closed-formeigenstructure based direction finding using arbitrary butidentical subarrays on a sparse uniform Cartesian arraygrid 2000(08)
5. MARCOS S The propagator method for source bearingestimation 1995
6. WANG H.KAVEH M Coherent signal-subspaceprocessing for the detection and estimation of angles ofarrival of multiple wide-band sources 1985(04)
7. CHEN H W.ZHAO J W Wideband MVDR beamformingfor acoustic vector sensor linear array 2004(03)
8. KROLIK J.SWINGLER D The performance of minimaxspatial resampling filters for focusing wide-band arrays 1991(08)
Memo
- Memo:
- 国家高技术研究发展计划(863计划)
