Title
Grid-free compressive beamforming using a single moving sensor of known trajectory.
Abstract
Recently, the grid-free compressive sensing (GFCS) approach was proposed to perform direction of arrival (DOA) estimation of sources. With the advancement of estimation techniques using a single sensor with a known trajectory, it is proposed that a GFCS method can be extended to achieve grid-free two-dimensional localization. Through the trajectory of the sensor, the proposed approach extracts the spatial information by first reformulating the single-channel signal into multiple waveforms, where each group of consecutive waveforms satisfying the quasi-stationary condition can be constructed into a virtual array called the sub one sensor array (SOSA). The DOA of the source with respect to each SOSA is then estimated with GFCS. Accordingly, the final location of the source is computed as the point that minimizes the mean square distance to all DOA lines. Numerical and experimental results demonstrate that the proposed approach is able to perform grid-free localization of a sound source.
Year
Venue
Keywords
2017
Asia-Pacific Signal and Information Processing Association Annual Summit and Conference
sensor array,localization,single sensor,linear motion,synthetic aperture
Field
DocType
ISSN
Aperture,Beamforming,Direction of arrival,Computer science,Sensor array,Waveform,Acoustics,Trajectory,Compressed sensing,Grid
Conference
2309-9402
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Yi Yang Ang100.68
Nam Nguyen2153.96
Joni Polili Lie300.68
Woon-Seng Gan423054.37