DOA Estimation with Sub-Array Divided Technique and Interporlated Esprit Algorithm on a Cylindrical Conformal Array Antenna

doi:10.2528/PIER10011904

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Progress In Electromagnetics Research	ISSN: 1070-4698, E-ISSN: 1559-8985

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DOA ESTIMATION WITH SUB-ARRAY DIVIDED TECHNIQUE AND INTERPORLATED ESPRIT ALGORITHM ON A CYLINDRICAL CONFORMAL ARRAY ANTENNA

By P. Yang, F. Yang, and Z.-P. Nie

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Abstract:
A novel DOA finding method for conformal array applications is proposed. By using sub-array divided and interpolation technique, ESPRIT-based algorithms can be used on conformal arrays for 1-D and 2-D DOA estimation. In this paper, the circular array mounted on a metallic cylindrical platform is divided to several sub-arrays, and each sub-array is transformed to virtual uniform linear array or virtual uniform planar array through interpolation technique. 1-D and 2-D direction of arrivals can be estimated accurately and quickly by using LS-ESPRIT and 2-D DFT-ESPRIT algorithms, respectively. This method can be applied not only to cylindrical conformal array but also to any other arbitrary curved conformal arrays. Validity of this method is proved by simulation results.

Citation:
P. Yang, F. Yang, and Z.-P. Nie, "DOA estimation with sub-array divided technique and interporlated esprit algorithm on a cylindrical conformal array antenna," Progress In Electromagnetics Research, Vol. 103, 201-216, 2010.
doi:10.2528/PIER10011904
http://www.jpier.org/pier/pier.php?paper=10011904

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