Direction of Arrival Estimation Method Using a 2-L Shape Arrays Antenna

Abstract

Abstract-The paper presents a new algorithm for a 2-dimensionnal direction of arrival estimation. Based on the extended Kalman filter (EKF), we analyse a recursive procedure for 2-dimensional directions of arrival (DOA) estimation and we will employ the two-L-shape arrays. A new space-variable model which we call a spatial state equation is presented using array element locations and incident angles. In this paper we briefly recapitulate the most important features of the extended Kalman filter (EKF). The performance of the proposed approach is examined by a simulation study with three signals model. The simulation results show a good estimate performance.

Blind Direction of Arrival Estimation of Coherent Sources Using Multi-Invariance Property

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“…[1][2][3][4][5][6][7][8][9][10][11][12]. The directionsof-arrival (DOA) estimation [13][14][15][16][17][18] of signals impinging on an array of sensors is a fundamental problem in array processing, and many methods have been proposed for its solution. Eigen-decompositionbased methods, including multiple signal classification (MUSIC) and estimation of signal parameters via rotational invariance techniques (ESPRIT), have high resolution DOA estimation performance, but they fail to work in coherent signal condition.…”

The Application of Ray-Tracing to Mobile Localization Using the Direction of Arrival and Received Signal Strength in Multipath Indoor Environments

“…Many proposed localization methods and algorithms were based on the computation of the time of arrival (TOA) [5][6][7], time differences of arrival (TDOA) [8], direction of arrival (DOA) [9][10][11] and the received signal strength (RSS) [12,13]. Conventional methods based on these four measurements increase in error with multipath propagation because they require LoS conditions between the access points and the mobile stations.…”

Diversity Monopulse Antenna Based on a Dual-Frequency and Dual Mode CRLH Rat-Race Coupler

“…Direction of Arrival (DoA) systems are based on antenna arrays that optimize a function to obtain the corresponding direction of arrival from any source [1]. One of the earliest tracking systems is the wellknown monopulse antenna in which two radiating elements provide, Furthermore, size reduction and bandwidth improvement has been obtained in 180 • hybrids by replacing the 270 • RH line with a −90 • LH line [13], high coupling has been achieved in couplers [14] and dual-frequency branch line or rat-race hybrids [5] by replacing the conventional 90 • RH lines with CRLH TLs to obtain the same delays at two different frequencies.…”