English
Related papers

Related papers: Performance Evaluation of eLoran Spatial ASF Corre…

200 papers

Given the basic parameters of a cosmic shear weak lensing survey, how well can systematic errors due to anisotropy in the point spread function (PSF) be corrected? The largest source of error in this correction to date has been the…

Astrophysics · Physics 2009-11-13 Bhuvnesh Jain , Mike Jarvis , Gary Bernstein

Time-based indoor positioning techniques rely on multiple access points (APs) and measurements between the user equipment (UE) and the APs. In dense indoor environments, occlusion-induced non-line-of-sight (NLoS) propagation introduces…

Signal Processing · Electrical Eng. & Systems 2026-05-20 Neetu R. R , Shrihari Vasudevan , Ranjani H. G

Scan line levelling, a ubiquitous and often necessary step in AFM data processing, can cause a severe bias on measured roughness parameters such as mean square roughness or correlation length. Although bias estimates have been formulated,…

Data Analysis, Statistics and Probability · Physics 2024-06-06 David Nečas

We present a novel Parameter-Efficient Fine-Tuning (PEFT) method, dubbed as Adaptive Freezing of Low Rank Adaptation (AFLoRA). Specifically, for each pre-trained frozen weight tensor, we add a parallel path of trainable low-rank matrices,…

Computation and Language · Computer Science 2024-04-17 Zeyu Liu , Souvik Kundu , Anni Li , Junrui Wan , Lianghao Jiang , Peter Anthony Beerel

We present an approach to reduce the performance disparity between geographic regions without degrading performance on the overall user population for ASR. A popular approach is to fine-tune the model with data from regions where the ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2024-02-09 Viet Anh Trinh , Pegah Ghahremani , Brian King , Jasha Droppo , Andreas Stolcke , Roland Maas

Recently there has been growing interest in the use of aerial and satellite map data for autonomous vehicles, primarily due to its potential for significant cost reduction and enhanced scalability. Despite the advantages, aerial data also…

We present a cost-efficient and versatile method to map an unknown 3D freeform surface using only sparse measurements while the end-effector of a robotic manipulator moves along the surface. The geometry is locally approximated by a plane,…

Robotics · Computer Science 2021-10-08 Manuel Amersdorfer , Thomas Meurer

Knowing where livestock are located enables optimized management and mustering. However, Australian farms are large meaning that many of Australia's livestock are unmonitored which impacts farm profit, animal welfare and the environment.…

Computer Vision and Pattern Recognition · Computer Science 2022-01-21 Jasper Brown , Yongliang Qiao , Cameron Clark , Sabrina Lomax , Khalid Rafique , Salah Sukkarieh

For beamforming ultrasound (US) signals, typically a spatially constant speed-of-sound (SoS) is assumed to calculate delays. As SoS in tissue may vary relatively largely, this approximation may cause wavefront aberrations, thus degrading…

Image and Video Processing · Electrical Eng. & Systems 2019-12-12 Richard Rau , Dieter Schweizer , Valery Vishnevskiy , Orcun Goksel

The single sideband (SSB) framework of analytical electron ptychography can account for the presence of residual geometrical aberrations induced by the probe-forming lens. However, the accuracy of this aberration correction method is highly…

This paper introduces two machine learning optimization algorithms to significantly enhance position estimation in Reconfigurable Intelligent Surface (RIS) aided localization for mobile user equipment in Non-Line-of-Sight conditions.…

Signal Processing · Electrical Eng. & Systems 2024-05-06 Rafael A. Aguiar , Nuno Paulino , Luís M. Pessoa

Optical quasar spectra can be used to trace variations of the fine-structure constant alpha. Controversial results that have been published in last years suggest that in addition to to wavelength calibration problems systematic errors might…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Nils Prause , Dieter Reimers

This letter presents a comprehensive framework analyzing the asymptotic error performance of a multiple-input-multiple-output (MIMO) wireless system employing spatial modulation (SM) with maximum likelihood detection and perfect channel…

Information Theory · Computer Science 2014-06-02 Kostas P. Peppas , Martin Zamkotsian , Fotis Lazarakis , Panayotis G. Cottis

As the vulnerabilities of global navigation satellite systems (GNSS) have become more widely recognized, the need for complementary navigation systems has grown. Medium frequency ranging mode (MF R-Mode) has gained attention as an effective…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Jongmin Park , Junwoo Song , Taewon Kang , Jaewon Yu , Pyo-Woong Son

Density functional theory offers accurate structure prediction at acceptable computational cost, but commonly used approximations suffer from delocalization error; this results in inaccurate predictions of quantities such as energy band…

Materials Science · Physics 2022-08-17 Aaron Mahler , Jacob Z. Williams , Neil Qiang Su , Weitao Yang

In this paper, a symbol error rate (SER) analysis is provided to evaluate the impact of localization inaccuracy on the communication performance under Zero-Forcing (ZF) and Minimum Mean-Square Error (MMSE) equalizers. Specifically, we adopt…

Information Theory · Computer Science 2025-12-01 Shuaishuai Han , Emad Alsusa , Arafat Al-Dweik

Based on the background of the 2021 Higher Education Club Cup National College Students Mathematical Contest in Modeling A, according to the relevant data of the China Sky Eye (FAST) radio telescope, the main cable nodes and actuators are…

Optimization and Control · Mathematics 2022-04-13 Tongyue Shi , Siyu Tao , Haining Wang

We propose a new estimation methodology to address the presence of covariate measurement error by exploiting the availability of spatial data. The approach uses neighboring observations as repeated measurements, after suitably controlling…

Econometrics · Economics 2025-11-06 Susanne M. Schennach , Vincent Starck

Training autonomous vehicles requires lots of driving sequences in all situations\cite{zhao2016}. Typically a simulation environment (software-in-the-loop, SiL) accompanies real-world test drives to systematically vary environmental…

Image and Video Processing · Electrical Eng. & Systems 2018-01-09 Christian Wittpahl , Hatem Ben Zakour , Matthias Lehmann , Alexander Braun

Anomaly detection and localization in medical imaging remain critical challenges in healthcare. This paper introduces Spatial-MSMA (Multiscale Score Matching Analysis), a novel unsupervised method for anomaly localization in volumetric…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Ahsan Mahmood , Junier Oliva , Martin Styner