Results 1 to 10 of about 286,623 (333)
Indoor Multipath Assisted Angle of Arrival Localization [PDF]
Sensors, 2017 Indoor radio frequency positioning systems enable a broad range of location aware applications. However, the localization accuracy is often impaired by Non-Line-Of-Sight (NLOS) connections and indoor multipath effects.
Stijn Wielandt, Lieven De Strycker
doaj +9 more sources
Angle-of-Arrival Assisted GNSS Collaborative Positioning [PDF]
Sensors, 2016 For outdoor and global navigation satellite system (GNSS) challenged scenarios, collaborative positioning algorithms are proposed to fuse information from GNSS satellites and terrestrial wireless systems.
Bin Huang +3 more
doaj +4 more sources
Outdoor Navigation Using Bluetooth Angle-of-Arrival Measurements [PDF]
IEEE Access, 2022 The introduction of direction finding in the Bluetooth standard enabled the use of antenna arrays for locating Bluetooth devices, using carrier phase measurements to estimate the direction from the array to a moving device.
Martin L. Sollie +3 more
doaj +2 more sources
Low-Complexity Joint Angle of Arrival and Time of Arrival Estimation of Multipath Signal in UWB System [PDF]
Sensors, 2023 In an ultra-wideband (UWB) system, the two-dimensional (2D) multiple signal classification (MUSIC) algorithms based on high-precision 2D spectral peak search can jointly estimate the time of arrival (TOA) and angle of arrival (AOA).
Weiming Deng +3 more
doaj +2 more sources
Optimal 3D Angle of Arrival Sensor Placement with Gaussian Priors [PDF]
Entropy, 2021 Sensor placement is an important factor that may significantly affect the localization performance of a sensor network. This paper investigates the sensor placement optimization problem in three-dimensional (3D) space for angle of arrival (AOA) target ...
Rongyan Zhou +4 more
doaj +2 more sources
Optimal Sensor Arrangements in Angle of Arrival (AoA) and Range Based Localization with Linear Sensor Arrays [PDF]
Sensors, 2013 This paper investigates the linear separation requirements for Angle-of-Arrival (AoA) and range sensors, in order to achieve the optimal performance in estimating the position of a target from multiple and typically noisy sensor measurements.
Pubudu N. Pathirana +1 more
doaj +2 more sources
Indoor Localization Based on Infrared Angle of Arrival Sensor Network [PDF]
Sensors, 2020 Accurate, inexpensive, and reliable real-time indoor localization holds the key to the full potential of the context-aware applications and location-based Internet of Things (IoT) services. State-of-the-art indoor localization systems are coping with the
Damir Arbula, Sandi Ljubic
doaj +2 more sources
Ultra-Wideband Angle of Arrival Estimation Based on Angle-Dependent Antenna Transfer Function [PDF]
Sensors, 2019 Ultra-wideband radio signals are used in communication, indoor localization and radar systems, due to the high data rates, the high resilience to fading and the fine temporal resolution that can be achieved with a large bandwidth. This paper introduces a
Anton Ledergerber, Raffaello D’Andrea
doaj +2 more sources
On the Arrival Angle of Microwaves
, 1949 This research describes a preliminary effort to measure the effect of the atmosphere on the refraction of microwaves. Variations in the structure of the lower atmosphere cause small changes in the index of refraction, and these small changes might alter the angle at which the wave front arrives at the receiver.
Clayton M. Zieman
openalex +2 more sources
Angle of arrival of ten centimeter microwaves
, 2012 The path of an electromagentic wave propagated through the earth's atmosphere depends upon the homogeneity of the atmosphere. For the well mixed condition, which is the case most of the time, the wave follows a straight or a smoothly curved path. However, if the atmosphere is not homogeneous, the wave may change direction abruptly along the path. It is
George Leroy Batten Nelms
openalex +2 more sources