Liu, Chun-Lin and Vaidyanathan, P. P. (2016) Two-Dimensional Sparse Arrays with Hole-Free Coarray and Reduced Mutual Coupling. In: 50th Asilomar Conference on Signals, Systems and Computers. IEEE , Piscataway, NJ, pp. 1508-1512. ISBN 978-1-5386-3954-2 http://resolver.caltech.edu/CaltechAUTHORS:20161109-150012043
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Two-dimensional sparse arrays with hole-free difference coarrays, like billboard arrays and open box arrays, can identify O(N^2) uncorrelated source directions (DOA) using N sensors. These arrays contain some dense ULA segments, leading to many sensor pairs separated by λ/2. The DOA estimation performance often suffers degradation due to mutual coupling between such closely-spaced sensor pairs. This paper introduces a new 2D array called the half open box array. For a given N, this array has the same hole-free coarray as an open box array. At the same time, the number of sensor pairs with small separation is significantly reduced.
|Item Type:||Book Section|
|Additional Information:||© 2016 IEEE. This work was supported in parts by the ONR grant N00014-15-1-2118, the California Institute of Technology, and the Taiwan/Caltech Ministry of Education Fellowship.|
|Subject Keywords:||Planar sparse arrays, open box arrays, partially open box arrays. half open box arrays, mutual coupling, DOA estimation|
|Official Citation:||C. L. Liu and P. P. Vaidyanathan, "Two-dimensional sparse arrays with hole-free coarray and reduced mutual coupling," 2016 50th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, USA, 2016, pp. 1508-1512. doi: 10.1109/ACSSC.2016.7869629|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Kristin Buxton|
|Deposited On:||09 Nov 2016 23:13|
|Last Modified:||09 Mar 2017 00:30|
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