A DOA Estimation Method for Uniform Circular Array Based on Virtual Interpolation and Subarray Rotation

DOA Estimation with Uniform Circular Array Using Gauss-Newton Method Based on MUSIC and MODE Algorithms

A New Method of DOA Estimation for Uniform Antenna Array

A novel method of direction-of-arrival (DOA) estimation based on subarray beamforming for uniform circular arrays is proposed. In this method, the beamform manifold of uniform circular arrays is transformed via virtual structure, and then the virtual array is divided into two subarrrays. The target DOA is estimated from the phase shift between the reference signal and its phase-shifted version ...

DOA Estimation in Solving Mixed Non-Circular and Circular Incident Signals Based on the Circular Array

Non-circular properties of non-circular signals can be used to improve the performance of the direction-of-arrival (DOA) estimation. However, most ready-made algorithms are not applicable to the general case in which both non-circular and circular signals exist. In this paper, we present a novel DOA estimation algorithm for mixed signals, namely MS-MUSIC (Mixed Signals-Multiple Signals Classifi...

Array response interpolation and DOA estimation with array response decomposition

High-resolution direction-of-arrival (DOA) estimation requires an accurate array response model, which is usually achieved by measuring the response for given directions of the sources and employing interpolation. This paper considers the array response interpolation and DOA estimation by coherently combing parametric modeling and interpolation techniques. The proposed method is to decompose th...

Underdetermined DOA estimation of quasi-stationary signals via Khatri-Rao structure for uniform circular array

Underdetermined direction-of-arrival (DOA) estimation for quasi-stationary signals impinging on a uniform circular array (UCA) with M sensors is addressed in this paper. We apply the Khatri–Rao (KR) approach to the UCA and obtain a new signal model which is capable of providing OðMÞ sensors. Meanwhile, the virtual steering matrix can be decomposed into a product of characteristic matrix dependi...