Results 191 to 200 of about 32,791 (255)

Eigenspace Solution for AOA Localization in Modified Polar Representation

IEEE Transactions on Signal Processing, 2020
This paper focuses on the development and analysis of algebraic solution for source localization using angles of arrival (AOAs) in the modified polar representation (MPR), where sensor position errors are present.
Yimao Sun, Dominic K. C. Ho, Q. Wan
semanticscholar   +1 more source

Multiple WiFi Access Points Co-Localization Through Joint AoA Estimation

IEEE Transactions on Mobile Computing
Indoor localization is a fundamental task to many real-world applications, which however remains unresolved, especially with commodity WiFi Access Points (APs).
Shuaixin Yang, Dongheng Zhang, Ruiyuan Song, Pengfei Yin, Yan Chen   +4 more
semanticscholar   +1 more source

AOA Cooperative Position Localization

IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, 2008
In wireless sensor networks, it is very important to obtain an accurate position of each sensor node. In this paper, we consider the potential of Ultra Wideband (UWB) signals for positioning due to its special characteristics. Accurate angle of arrival (AOA) can be obtained using UWB antenna arrays. We propose a new cooperative positioning method based
Jun Xu, Maode Ma, Choi Look Law
openaire   +1 more source

First application of the novel anaerobic/aerobic/anoxic (AOA) process for advanced nutrient removal in a wastewater treatment plant.

Water Research
The stringent effluent quality standards in wastewater treatment plants (WWTPs) can effectively mitigate environmental issues such as eutrophication by reducing the discharge of nutrients into water environments. However, the current wastewater treatment
Xinjie Gao, Liang Zhang, Jinjin Liu, Yong Zhang, Yongzhen Peng   +4 more
semanticscholar   +1 more source

Synchronous Achievement of Advanced Nitrogen Removal and N2O Reduction in the Anoxic Zone in the AOA Process for Low C/N Municipal Wastewater.

Environmental Science and Technology
Continuous flow processes for the in situ determination of N2O emissions during low C/N municipal wastewater treatment have rarely been reported. The anaerobic/aerobic/anoxic (AOA) process has recently shown promising potential in energy savings and ...
Zeming An, Xinjie Gao, Baishuo Shao, Qiong Zhang, Jing Ding, Yongzhen Peng   +5 more
semanticscholar   +1 more source

Single-Antenna AoA Estimation with UWB Radios

IEEE Wireless Communications and Networking Conference, 2021
Ultra-wideband (UWB) is becoming a major localization technology enabler for the indoor environment. Traditional localization systems rely on time-of-arrival (ToA)-based methods such as two-way ranging (TWR) and time difference of arrival (TDoA).
Nour Smaoui, Milad Heydariaan, O. Gnawali   +2 more
semanticscholar   +1 more source

Hybrid TOA-AOA Cooperative Localization for Multiple AUVs in the Absence of Anchors

IEEE Transactions on Industrial Informatics
This article presents a hybrid time-of-arrival (TOA) and angle-of-arrival (AOA) cooperative localization algorithm, termed HTACL, for the multiple-autonomous-underwater-vehicle (multi-AUV) navigation in the absence of anchors (devices with known ...
Yichen Li, Wenbin Yu, Xinping Guan
semanticscholar   +1 more source

Barrier Lyapunov Function Based Learning Control of Hypersonic Flight Vehicle With AOA Constraint and Actuator Faults

IEEE Transactions on Cybernetics, 2019
This paper investigates a fault-tolerant control of the hypersonic flight vehicle using back-stepping and composite learning. With consideration of angle of attack (AOA) constraint caused by scramjet, the control laws are designed based on barrier ...
B. Xu, Zhong-ke Shi, F. Sun, Wei He
semanticscholar   +1 more source

AoA-Based Iterative Positioning of IoT Sensors With Anchor Selection in NLOS Environments

IEEE Transactions on Vehicular Technology, 2021
Iterative positioning based on Angle-of-Arrival (AoA) measurements is currently arising as a solution to the positioning of Internet-of-Things (IoT) sensors in an indoor environment.
Shaghayegh S. M. Monfared, Evert I. Pocoma Copa, P. De Doncker, F. Horlin   +3 more
semanticscholar   +1 more source

Finite-Time Neural Optimal Control for Hypersonic Vehicle With AOA Constraint

IEEE Transactions on Aerospace and Electronic Systems
For an air-breathing hypersonic vehicle (AHV), the high angle of attack (AOA) caused by longitudinal maneuver may lead to the inlet unstart of a scramjet. Therefore, it is necessary to consider the AOA constraint in the controller design of the AHV.
Xiao Han, Bo Wang, Lei Liu, H. Fan
semanticscholar   +1 more source