Blind AoA/AoD Estimation for Hybrid Arrays

• Main Authors: Chien, Shao-Yu, 簡紹育
• Other Authors: Wu, Wen-Rong
• Format: Others
• Language: en_US
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/vc7988

碩士 === 國立交通大學 === 電信工程研究所 === 105 === Beamforming with digital or analog antenna array has been used in wireless systems. To conduct beamforming, the receiver has to know the angle of arrival (AoA) while the transmitter the angle of departure (AoD). Subspace-based blind method, such as MUSIC and ESPRIT, are well known for AoA estimation. Recently, hybrid array has been proposed as a compromise between performance and cost of antenna array. Unfortunately, MUSIC/ESPRIT cannot be used in hybrid arrays. In this thesis, we first propose a new blind AoA estimation method for systems with hybrid arrays. Then, we extend the method to conduct AoD estimation. Simulations show that the proposed methods perform satisfactorily for hybrid-array aided OFDM systems.