A Generalized Algorithm for Fast Two-Dimensional Angle Estimation of a Single Source With Uniform Circular Arrays

We reported an algorithm for two-dimensional (2-D) angle estimation of a single source with uniform circular arrays (UCAs) in our previous work. However, it is worth noting that this method is derived based on the assumption that the number of the sensors is even. This may limit its application in p...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 11; pp. 984 - 986
Main Authors Bin Liao, Yun-Tao Wu, Shing-Chow Chan
Format Journal Article
LanguageEnglish
Published IEEE 2012
Subjects
Algorithm design and analysis
Array signal processing
Azimuth
Direction of arrival estimation
Estimation
Sensors
Signal processing algorithms
two-dimensional (2-D) angle estimation
uniform circular array (UCA)
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ISSN1536-1225
1548-5757
DOI10.1109/LAWP.2012.2213792

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Summary:We reported an algorithm for two-dimensional (2-D) angle estimation of a single source with uniform circular arrays (UCAs) in our previous work. However, it is worth noting that this method is derived based on the assumption that the number of the sensors is even. This may limit its application in practice. To this end, we extend our previous work and propose a generalized algorithm that is applicable to UCAs with the sensor number being even as well as odd. Similar to our previous work, the generalized algorithm offers closed-form estimates of azimuth and elevation angles. Thus, it is computationally efficient. Numerical examples are provided to show the effectiveness and good performance of the proposed generalized approach.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2012.2213792