TY - JOUR
T1 - Multipath DoA Estimation by Rotational Invariance on Array Channel Impulse Response
AU - Zhang, Ruonan
AU - Wang, Shichao
AU - Zhong, Zhimeng
AU - Zhao, Jianping
AU - Li, Bin
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016
Y1 - 2016
N2 - To characterize multipath spatial propagations in three-dimensional space is critical in wireless channel measurements and modeling. Due to the large number of paths and the correlation among multipath signals, the direction-of-arrival (DoA) estimation for propagation paths is a challenging issue. In this letter, we propose a new multipath DoA estimation scheme, named Multipath DoA Estimation by Rotational Invariance on Array Impulse Response (MERIA), which utilizes the rotational invariance of array channel impulse response matrix and estimates the DoAs of arriving paths individually and sequentially. Simulations and field measurement experiments have demonstrated that MERIA can estimate incident angles of a large number of paths and suppress multipath interference effectively. Therefore, by using MERIA in field channel measurements, the requirements on the antenna array size and the hardware complexity of channel sounders can be reduced significantly.
AB - To characterize multipath spatial propagations in three-dimensional space is critical in wireless channel measurements and modeling. Due to the large number of paths and the correlation among multipath signals, the direction-of-arrival (DoA) estimation for propagation paths is a challenging issue. In this letter, we propose a new multipath DoA estimation scheme, named Multipath DoA Estimation by Rotational Invariance on Array Impulse Response (MERIA), which utilizes the rotational invariance of array channel impulse response matrix and estimates the DoAs of arriving paths individually and sequentially. Simulations and field measurement experiments have demonstrated that MERIA can estimate incident angles of a large number of paths and suppress multipath interference effectively. Therefore, by using MERIA in field channel measurements, the requirements on the antenna array size and the hardware complexity of channel sounders can be reduced significantly.
KW - Direction-of-arrival estimation
KW - multipath channel measurement
KW - radio propagation
UR - http://www.scopus.com/inward/record.url?scp=84963813082&partnerID=8YFLogxK
U2 - 10.1109/LAWP.2015.2486624
DO - 10.1109/LAWP.2015.2486624
M3 - 文章
AN - SCOPUS:84963813082
SN - 1536-1225
VL - 15
SP - 964
EP - 967
JO - IEEE Antennas and Wireless Propagation Letters
JF - IEEE Antennas and Wireless Propagation Letters
M1 - 7289354
ER -