Angle of Arrival (AoA) estimation that applies wideband channel estimation is superior to the narrowband MUSIC (multiple signal classification) approach, even when averaging its results over the entire relevant band. This work reports the results of indoor AoA estimation based on wideband propagation channel measurements taken over a uniform linear antenna array. The measurements were carried o...

Recently, mobile location estimate problem is a significant issue in many industrial fields such as radar, wireless communication, target tracking, and various types of location based services. Time difference of arrival (TDOA) and angle of arrival (AOA) are typical geolocation techniques for estimation of mobile location. In this paper, we suggest a hybrid TDOA/AOA geolocation equation as a si...

We propose modeling an angle-of-arrival (AOA) positioning measurement as a von Mises–Fisher (VMF) distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements. Describing the 2dimensional AOA measurement with three numbers removes discontinuities and reduces nonlinearity at the poles of the azimuth–elevation coordinate system. Our computer simulati...

Abstnrer-Location finding for CDMA subscribers using an antenna army at the base station and deploying multiple base stations is studied in this paper. ' b o metbods are considered for radio location: measured time-of-arrival (TOA) and angle-of-anival (AOA), and algorithms to estimate them are presented. The estimated TOA and AOA fmm different base stations are combined via data fusion to estim...

In this paper, we investigate angle of arrival (AOA)-based estimation of a mobile station (MS)’s location by monitoring the AOA at multiple reference software defined radio (SDR) receivers. Each Universal software radio peripheral (USRP) device captures the AOA from the uplink transmission of a MS via MUltiple SIgnal Classification (MUSIC), which is one of super-resolution techniques to estimat...

In this work we have investigated the problem of angle of arrival (AOA) estimation in the indoor environment. Coherent, multi-path signals must be resolved. The approach is based upon measurement of the AOA using a band of frequencies, approximately 10%-20% of center, and utilizes order statistic filtering to estimate the true angle of arrival from the set of individual AOA’s. A plane wave mode...

In this paper, array calibration methods using the real measured data have been investigated. A set of measured data is collected from a single source whose angle of arrival (AOA) is varied. Several calibration techniques are presented. The first one is a simple calibration method to compensate amplitude and phase errors between array elements. However, from the AOA estimation result, it is fou...

An Enhanced Two-Step Least Squared (LS) approach is proposed here for hybrid Time Difference of Arrival/Angle of Arrival (TDOA/ AOA) wireless location. Compared to the original two-step LS algorithm, the method here can provide better performance, almost the same as that of Taylor-Series estimator. Compared to the Taylor-Series solution, the method has many computational advantages, such as, li...

A model of an angle-spread source is described, termed the “Gaussian channel model” (GCM). This model is used to represent signals transmitted between a user equipment and a cellular base station. It assumes a Gaussian law of the scatterer occurrence probability, depending upon the scatterer distance from the user. The probability density function of the angle of arrival (AoA) of the multipath ...