Results 51 to 60 of about 3,470 (184)

Adaptive equaliser for multipath channels

Electronics Letters, 1970
An adaptive equalising system is described which makes possible efficient communication of serial digital data over a multipath channel, within certain limitations of the severity of the multipath. This technique is particularly suitable for two paths of comparable strength.
R.T. Boyd, F.C. Monds
openaire   +1 more source

Directive Antenna Clutter Loss in Slant Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán, Vicente Pastoriza‐Santos, Fernando Machado Domı́nguez, Thomas Prechtl, Pavel Pechac   +4 more
wiley   +1 more source

Effective Throughput Analysis of α-η-κ-μ Fading Channels

IEEE Access, 2020
The α-η-κ-μ fading model is a very useful instrument to accurately describe various radio wave propagation scenarios. In this paper, we study the effective throughput performance of communication systems over the α ...
Yun Ai, Aashish Mathur, Long Kong, Michael Cheffena   +3 more
doaj   +1 more source

Integrating Image Segmentation and Deep Learning to Improve Radio Frequency Propagation Models

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper proposes a multi‐sensor approach to improve radio frequency (RF) propagation models, which play a key role in the rapidly expanding field of connected vehicle technology. Focusing on the 1‐ to 20‐GHz frequency range, which is critical for both satellite‐to‐vehicle and base station‐to‐vehicle communications, our study introduces a ...
Jonathan Israel, Xavier Boulanger, Vegard Arneson   +2 more
wiley   +1 more source

Effective Capacity Analysis Over Generalized Composite Fading Channels

IEEE Access, 2020
A performance analysis of the effective capacity in two recently proposed generalized composite fading channels, namely $\kappa $ - $\mu $ /inverse gamma and $\eta $ - $\mu $ /inverse gamma composite fading channels, is conducted. To this end, accurate
Seong Ki Yoo, Simon L. Cotton, Paschalis C. Sofotasios, Sami Muhaidat, George K. Karagiannidis   +4 more
doaj   +1 more source

Differentiable architecture search-based automatic modulation recognition for multi-carrier signals

Tongxin xuebao
Considering the lack of a general multi-carrier signal dataset in urban multipath channels, and the challenge of recognizing the modulation types of distorted signals at low signal-to-noise ratio (SNR), a differentiable architecture search-based (DARTS ...
LI Jie, LI Jing, LYU Lu, GONG Fengkui
doaj   +2 more sources

Harnessing Human Mobility Data for Applied Economic Research: Current Knowledge, Challenges, and Emerging Opportunities

Journal of Economic Surveys, EarlyView.
ABSTRACT This paper reviews how large‐scale mobility data can enhance economic analyses, highlighting its contributions to understanding travel behavior, labor markets, social interactions, and health outcomes. We discuss its advantages over traditional mobility data sources, which include real‐time location information and fine spatial resolution ...
Cristina Connolly, Sandro Steinbach, Mike Vo, Xibo Wan   +3 more
wiley   +1 more source

Validation of ShakeMaps Created From Global Navigation Satellite System (GNSS) Velocities

Earthquake Spectra, Volume 42, Issue 3, August 2026.
Ground velocity observations generated through a time difference of Global Navigation Satellite Systems (GNSS) phase observables and orbits have been shown to be comparable to seismic recordings without clipping during intense ground motions. Computing GNSS velocities is also computationally scalable and increases the density of ground motion ...
Jensen V. DeGrande, Brendan W. Crowell
wiley   +1 more source

Common ground: Efficient, consistent, observer‐independent bioacoustic call density estimation with adjudicated ground truth and capture–recapture detection functions

Methods in Ecology and Evolution, Volume 17, Issue 7, Page 2161-2174, July 2026.
Abstract Passive acoustic recording is a cost‐effective method for monitoring vocal animals. Within this field, there is an increasing focus on automated detection algorithms for counting calls and estimating call density (in space and time). For accurate interpretation of such results, it is important to understand and correct biases introduced by ...
Brian S. Miller, Nat Kelly, Meghan G. Aulich, Naysa Balcazar, Susannah Buchan, Franciele R. de Castro, Kym Reeve, Danielle V. Harris   +7 more
wiley   +1 more source

Facet and Phase Engineering of Single‐Crystalline Transition‐Metal Phosphide Electrocatalysts for Selective Electrochemical Reactions

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Facet and phase engineering enables selective electrocatalysis in single‐crystalline transition‐metal phosphides by controlling surface termination, phase identity, and intermediate binding. This review connects noble metal benchmarks, phosphide phase evolution, synthetic growth principles, and electrode translation to guide rational catalyst design ...
Jieun Seo, Seo Hyun Kim, Hyunah Lee, Gyu Rac Lee, Hyeuk Jin Han   +4 more
wiley   +1 more source