Academic Journal of Computing & Information Science, 2020, 3(2); doi: 10.25236/AJCIS.2020.030208.
Yuxin Bai1, Kaikai Li2 and Xue Li1, *
1 The 18th Institute of China Academy of Launch Vehicle Technology, Beijing 100023, China
2 Tianjin Key laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University, Tianjin 300387, China
*Corresponding author e-mail: [email protected]
The Direction of arrival (DOA) estimation algorithms to Archimedes spiral antenna remains an important research topic. Unlike the MUSIC algorithm, ESPRIT algorithm has a lower computational complexity. However, ESPRIT algorithm also requires translation invariance, so it can only be used when the array is a uniform planar array (UPA) or a uniform linear array (ULA). This paper introduces a multi-arm Archimedean spiral array (MAASA) ESPRIT algorithm, which transforms the spiral array into a uniform rectangular array through conformal transformation to generate translation invariance. The ESPRIT algorithm is then applied in the transformed domain, and the result is inversely transformed to the initial domain. The simulation results show that the two-dimensional DOA can be realized by using the multi-arm Archimedes spiral array. By comparing the antenna pattern, it is further proved that the multi-arm Archimedes spiral array is superior to the conventional circular array and the planar array.
Multi-Input Multi-Output, Spiral Array, Archimedes, Angle of Arrival
Yuxin Bai, Kaikai Li and Xue Li. MAASA: Multi-Arm Archimedes Spiral Array for Arrival Angle Estimation. Academic Journal of Computing & Information Science (2020), Vol. 3, Issue 2: 54-67. https://doi.org/10.25236/AJCIS.2020.030208.
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