Liu, Chun-Lin and Vaidyanathan, P. P. (2018) Comparison of Sparse Arrays From Viewpoint of Coarray Stability and Robustness. In: 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM). IEEE , Piscataway, NJ, pp. 36-40. ISBN 978-1-5386-4752-3. https://resolver.caltech.edu/CaltechAUTHORS:20180906-142258359
Full text is not posted in this repository. Consult Related URLs below.
Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20180906-142258359
Abstract
Sparse arrays, such as minimum redundancy arrays (MRA), nested arrays, and coprime arrays, can resolve O(N^2), uncorrelated sources with N physical sensors, since they possess an O(N2) -long uniform segment in the difference coarray, which is defined as the differences between sensor locations. Empirically, this O(N^2), property is susceptible to sensor failures. On the other hand, uniform linear arrays (ULA) are known to be robust, but they possess only O(N) elements in the difference coarray. This paper compares the size and the robustness of the difference coarray for a wide variety of array geometries. It is observed from numerical examples that, for a fixed N, increasing the size of the difference coarray typically makes it less robust to faulty sensors. Furthermore, it is noticed from examples that given two arrays with the same N and the same difference coarray, one could be much more robust than the other.
Item Type: | Book Section | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Related URLs: |
| ||||||||||
ORCID: |
| ||||||||||
Additional Information: | © 2018 IEEE. This work was supported in parts by the ONR grants N00014-15-1-2118 and N00014-17-1-2732, the NSF grant CCF-1712633, and the California Institute of Technology. | ||||||||||
Funders: |
| ||||||||||
DOI: | 10.1109/SAM.2018.8448465 | ||||||||||
Record Number: | CaltechAUTHORS:20180906-142258359 | ||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20180906-142258359 | ||||||||||
Official Citation: | C. Liu and P. P. Vaidyanathan, "Comparison of Sparse Arrays From Viewpoint of Coarray Stability and Robustness," 2018 IEEE 10th Sensor Array and Multichannel Signal Processing Workshop (SAM), Sheffield, South Yorkshire, United Kingdom, 2018, pp. 36-40. doi: 10.1109/SAM.2018.8448465 | ||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||
ID Code: | 89427 | ||||||||||
Collection: | CaltechAUTHORS | ||||||||||
Deposited By: | Tony Diaz | ||||||||||
Deposited On: | 07 Sep 2018 00:01 | ||||||||||
Last Modified: | 16 Nov 2021 00:35 |
Repository Staff Only: item control page