Results 101 to 110 of about 3,204 (200)
Sensors, 2019 In this paper, we characterize and measure the effects of the errors introduced by the multipath when obtaining the position of an agent by means of Indoor Positioning Systems (IPS) based on optical signal.
Álvaro De-La-Llana-Calvo +5 more
doaj +1 more source
Spatial Characterization of GNSS Multipath Channels
International Journal of Antennas and Propagation, 2012 There is a growing interest in detecting and processing Global Navigation Satellite System (GNSS) signals in indoors and urban canyons by handheld devices.
Hatef Keshvadi +2 more
doaj +1 more source
A Hybrid Distance Estimation for Wireless Body Sensor Networks
International Journal of Distributed Sensor Networks, 2013 Wireless body area networks become a new research issue in recent years. In this paper, we propose hibernation and distance estimation schemes for wireless USB (WUSB) over wireless body area networks (WBAN) hierarchical protocol for body sensor networks (
Kyeong Hur, Won-Sung Sohn, Jae-Kyung Kim
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Geometrical statistical channel model with an Inverted-Parabolic spatial distribution
Tongxin xuebao, 2014 Due to the complexity of calculation for the parameters of angle of arrival(AOA),time of arrival(TOA) and Dopplerspectra(DS),etc.,a proper geometrical statistical channel model was proposed with inverted-parabolic spatial distribution around mobile ...
Jie ZHOU, Dong-dong XU, Kikuchi HISAKAZU
doaj +2 more sources
A Constrained Least Squares Approach to Mobile Positioning: Algorithms and Optimality
EURASIP Journal on Advances in Signal Processing, 2006 The problem of locating a mobile terminal has received significant attention in the field of wireless communications. Time-of-arrival (TOA), received signal strength (RSS), time-difference-of-arrival (TDOA), and angle-of-arrival (AOA) are commonly used ...
Ma W-K, Chan YT, Cheung KW, So HC
doaj +1 more source
, 2007 This paper theoretically derives a marginal angle-of-arrival (AoA) probability density function (pdf) in multi-path mobile environment where the scatterer distribution obeys a hyperbolic sech function.
Le, Khoa, Dabke, Kishor
core
Robust navigation using angle of arrival measurements
The majority of conventional radionavigation systems are based on Time of Arrival (TOA) measurements of RF signals. By far the most common method is pseudoranging, mainly a result of the undisputed success of Global Navigation Satellite Systems (GNSS) as
Swaszek, Peter +4 more
core +1 more source
Doppler method for angle of arrival estimation [PDF]
, 2015 Radio direction finder, which utilizes angle-of-arrival (AOA) estimation, is a function in a radio monitoring system to estimate the direction of the signal.
Yakub, Nasir Abubakar
core
Research on AOA estimation methods for arbitrary structured arrays
Dianxin kexueDirection of arrival (DOA) estimation is a critical area in array signal processing, with angle of arrival (AOA) being its core parameter. AOA estimation was taken as the main research objective to enhance accuracy in arbitrary structured arrays.
HONG Youjia +3 more
doaj
On angle-of-arrival and time-of-arrival statistics of geometric scattering channels
, 2009 This paper proposes a hyperbolic distribution to model the distribution of random scatterers between a base station (BS) and the user equipment (UE) in multipath mobile environments. New hyperbolic angle-of-arrival (AoA) probability density function (pdf)
Le, Khoa N. (R14329)
core +1 more source