Title :
Optimization of Angle-of-Arrival Estimation Via Real-Valued Sparse Representation With Circular Array Radar
Author :
Kazemi, Iman ; Moniri, Mohammad Reza ; Kandovan, Ramin Shaghaghi
Author_Institution :
Dept. of Electr. Eng., Islamic Azad Univ., Tehran, Iran
Abstract :
This paper suggests a real-valued sparse representation method using a unitary transformation that can convert complex-valued manifold matrices from uniform circular array into real ones. Because of this transformation, the computational complexity is modified. Simulation results confirmed the effectiveness of the proposed method with a circular array radar.
Keywords :
computational complexity; direction-of-arrival estimation; matrix algebra; optimisation; radar signal processing; signal representation; angle-of-arrival estimation; circular array radar; complex-valued manifold matrices; computational complexity; optimization; real-valued sparse representation; unitary transformation; Arrays; Covariance matrices; Direction-of-arrival estimation; Estimation; Optimization; Sensors; Symmetric matrices; Angle of arrival (AOA); array signal processing; uniform circular array (UCA);
Journal_Title :
Access, IEEE
DOI :
10.1109/ACCESS.2013.2270173
