Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Audio Signal Processing for Next-Generation Multimedia Communication Systems
Audio Signal Processing for Next-Generation Multimedia Communication Systems
Passive acoustic source localization for video camera steering
ICASSP '00 Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 02
IEEE Transactions on Signal Processing
Robust system multiangulation using subspace methods
Proceedings of the 6th international conference on Information processing in sensor networks
Information fusion for wireless sensor networks: Methods, models, and classifications
ACM Computing Surveys (CSUR)
An Empirical Study of Collaborative Acoustic Source Localization
Journal of Signal Processing Systems
On the scalability of expanding ring search for dense wireless sensor networks
Journal of Parallel and Distributed Computing
A sensor network-based multiple acoustic source localization algorithm
Proceedings of the 27th Annual ACM Symposium on Applied Computing
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Sensor network technology can revolutionize the study of animal ecology by providing a means of non-intrusive, simultaneous, unmanned monitoring. In this paper, we investigate the design, analysis, and testing of acoustic arrays for localizing bird vocalizations of different species. The spectra of the bird waveforms affect the desired dimension of the array. Microphones are placed in a uniform circular array and are finely synchronized within a few microseconds. We apply the Approximate Maximum Likelihood (AML) method to estimate the source direction-of-arrival (DOA) and perform beamforming for signal enhancement. The crossing of the distributed DOA estimated bearings is used to localize the birds, and the enhanced signals are used for training and estimation for the classification of the birds. The experimental results demonstrate the practicality and robustness of our array design.