Results 71 to 80 of about 2,352 (176)

Moving Target At Constant Velocity Localization Using TOA Measurements From Single Moving Receiver With Unknown Signal Period

IEEE Open Journal of Signal Processing
In this article, we consider using time-of-arrival (TOA) measurements from a single moving receiver to locate a moving target at constant velocity that emits a periodic signal with unknown signal period.
Yanbin Zou, Jingna Fan, Zekai Zhang
doaj   +1 more source

Maximum likelihood localization: When does it fail?

ICT Express, 2016
Maximum likelihood is a criterion often used to derive localization algorithms. In particular, in this paper we focus on a distance-based algorithm for the localization of nodes in static wireless networks. Assuming that Ultra Wide Band (UWB) signals are
Stefania Monica, Gianluigi Ferrari
doaj   +1 more source

Signaling Vision: Knowing When to Quit

International Economic Review, Volume 67, Issue 3, Page 997-1013, August 2026.
ABSTRACT We study a signaling game where agents signal their type by choosing when to quit pursuing an uncertain project. High types observe news about project quality and quit when bad news arrives. Low types who do not observe any news may mimic high types by quitting continuously over a phase of time.
Junichiro Ishida, Wing Suen
wiley   +1 more source

High-Precision Indoor Localization via Dual-Modal AOA/TOA Fusion with Deep Learning and Particle Filters [PDF]

Radioengineering
As the era of IoT and artificial intelligence advances, the demand for high-precision indoor positioning systems continues to grow. Achieving accurate positioning in indoor environments remains challenging due to the presence of obstacles and signal ...
X. Yao, Z. Xu, F. Qiang
doaj  

Analysis of the Charge Structure and Lightning Activity During a Severe Beijing Thunderstorm via an Innovative Balloon‐Borne 3D Electric Field Observation System

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We developed an innovative balloon‐borne observation system based on China's BeiDou sounding platform that integrates a three‐axis electric field sensor for in‐cloud measurements of thunderstorm electrification. On 13 May 2025, this system was deployed during a severe convective storm over Beijing. In combination with multisource observations,
Ye Tian, Wenbin Gao, Chenyi Shi, Yue Sun, Xuebo Fan, Lei Meng, YongTao Yu, LongBin Zhang, Chen Chang, Jiachun Yang, Jin Li   +10 more
wiley   +1 more source

Sprites Observed by ASIM: First Imaging Data Set and Temporal UV Emission Patterns

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract We present the first data set analysis of 41 imaging‐confirmed sprite events detected by the ASIM‐MMIA instrument. They were visible in the 337 nm camera images from an initial list of 102 candidates identified by the ultraviolet (UV 180–230 nm) photometer.
J. A. López, J. Montanyà, O. van der Velde, D. Romero, J. Navarro‐González, V. Reglero, O. Chanrion, T. Neubert, N. Østgaard   +8 more
wiley   +1 more source

Influence of Explicit Tropospheric VOC Chemistry on the Top‐Of‐Atmosphere Net Radiation Budget: Differences Between Two Preindustrial CESM2 Chemistry Configurations

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract The representation of volatile organic compound (VOC) chemistry in earth system models directly impacts aerosol formation. Previous work shows explicitly representing VOC chemistry produces significant impacts on simulated climate compared to an implicit “SOAG scheme” that prescribes a bulk gas‐phase precursor to secondary organic aerosol (SOA)
Noah A. Stanton, Neil F. Tandon
wiley   +1 more source

Research on indoor positioning system algorithm based on UWB technology

Measurement: Sensors
Ultra wideband (UWB) indoor positioning technology is attracting significant attention in the present realm of indoor wireless positioning technology due to its numerous advantages, including low energy consumption, exceptional wireless transmission ...
Weimin Ma, Xianbao Fang, Li Liang, Jianghuai Du   +3 more
doaj   +1 more source

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

Robust Indoor Positioning with Smartphone by Utilizing Encoded Chirp Acoustic Signal

Sensors
Recently, indoor positioning has been one of the hot topics in the field of navigation and positioning. Among different solutions on indoor positioning, positioning with acoustic signals has its promise due to its relatively high accuracy in the line of ...
Bingbing Cheng, Ying Huang, Chuanyi Zou
doaj   +1 more source