Title
Doa Estimation Error And Resolution Loss In Linear Sensor Array
Abstract
In order to estimate the direction of signal arrival (DOA) precisely, array of sensors is widely used to enhance resolution and accuracy of the results. For subspace-based algorithms, array sensors' position error may severely influence the estimation result since it changes the array in manifold. In this paper, we provide an improved DOA estimation method for general linear sensor array so that the effect of position error is minimized. We analytically present the relationship between sensor position error and the array's minimum resolution. Simulation results show that the new method does enhance the accuracy of the DOA estimation and the array resolution is determined by both the number of array sensors and the position error.
Year
DOI
Venue
2013
10.1109/CISS.2013.6552300
2013 47TH ANNUAL CONFERENCE ON INFORMATION SCIENCES AND SYSTEMS (CISS)
Keywords
Field
DocType
DOA, array manifold, position error, resolution
Mathematical optimization,Subspace topology,Computer science,Sensor array,Algorithm,Position error,Speech recognition,Manifold
Conference
Citations 
PageRank 
References 
0
0.34
4
Authors
3
Name
Order
Citations
PageRank
Siqian Liu122.75
Hongxiang Li227016.42
Bei Gou354.35