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View article: SpineBench: Benchmarking Multimodal LLMs for Spinal Pathology Analysis
SpineBench: Benchmarking Multimodal LLMs for Spinal Pathology Analysis Open
With the increasing integration of Multimodal Large Language Models (MLLMs) into the medical field, comprehensive evaluation of their performance in various medical domains becomes critical. However, existing benchmarks primarily assess ge…
View article: Weighted Covariance Intersection for Range-based Distributed Cooperative Localization of Multi-Vehicle Systems
Weighted Covariance Intersection for Range-based Distributed Cooperative Localization of Multi-Vehicle Systems Open
Cooperative localization is considered a key solution for enabling autonomous navigation of multi-vehicle systems (MVS) in GNSS-denied environments. Among all solutions, distributed cooperative localization (DCL) has garnered widespread at…
View article: A UWB-AOA/IMU Integrated Navigation System for 6-DoF Indoor UAV Localization
A UWB-AOA/IMU Integrated Navigation System for 6-DoF Indoor UAV Localization Open
With the increasing deployment of unmanned aerial vehicles (UAVs) in indoor environments, the demand for high-precision six-degrees-of-freedom (6-DoF) localization has grown significantly. Ultra-wideband (UWB) technology has emerged as a k…
View article: An Optimized Maximum Second-Order Cyclostationary Blind Deconvolution and Bidirectional Long Short-Term Memory Network Model for Rolling Bearing Fault Diagnosis
An Optimized Maximum Second-Order Cyclostationary Blind Deconvolution and Bidirectional Long Short-Term Memory Network Model for Rolling Bearing Fault Diagnosis Open
To address the challenge of extracting fault features and accurately identifying bearing fault conditions under strong noisy environments, a rolling bearing failure diagnostic technique is presented that utilizes parameter-optimized maximu…
View article: Survey on AI-Generated Media Detection: From Non-MLLM to MLLM
Survey on AI-Generated Media Detection: From Non-MLLM to MLLM Open
The proliferation of AI-generated media poses significant challenges to information authenticity and social trust, making reliable detection methods highly demanded. Methods for detecting AI-generated media have evolved rapidly, parallelin…
View article: Parameterized TDOA: TDOA estimation for mobile target localization in a time-division broadcast positioning system
Parameterized TDOA: TDOA estimation for mobile target localization in a time-division broadcast positioning system Open
In a time-division broadcast positioning system (TDBPS), localizing mobile targets using classical time difference of arrival (TDOA) methods poses significant challenges. Concurrent TDOA measurements are infeasible because targets receive …
View article: Fast Exclusion Candidate Identification Based on Sparse Estimation for ARAIM Fault Exclusion Process
Fast Exclusion Candidate Identification Based on Sparse Estimation for ARAIM Fault Exclusion Process Open
Advanced receiver autonomous integrity monitoring (ARAIM) is an integrity technique for a global navigation satellite system (GNSS), centered on the multiple hypothesis solution separation (MHSS) test, which assesses the consistency betwee…
View article: A GNSS Anti-Spoofing Technique Based on the Spatial Distribution Characteristic of the Residual Vectors
A GNSS Anti-Spoofing Technique Based on the Spatial Distribution Characteristic of the Residual Vectors Open
Anti-spoofing is becoming a crucial technique for applications with high navigation accuracy and reliability requirements. Anti-spoofing technique based on Receiver Autonomous Integrity Monitoring (RAIM) is a good choice for most Global Na…
View article: Designing the Signal Quality Monitoring Algorithm Based on Chip Domain Observables for BDS B1C/B2a Signals under the Requirements of DFMC SBAS
Designing the Signal Quality Monitoring Algorithm Based on Chip Domain Observables for BDS B1C/B2a Signals under the Requirements of DFMC SBAS Open
To guarantee the integrity of a global navigation satellite system (GNSS) for safety-critical users, a satellite-based augmentation system (SBAS) makes use of the integrity monitoring architecture, of which the signal quality monitor (SQM)…
View article: Multipath Mitigation for BOC Signals Based on Prompt-Assisted-Offset Correlator
Multipath Mitigation for BOC Signals Based on Prompt-Assisted-Offset Correlator Open
Tracking ambiguity and multipath are two serious threats in processing binary offset carrier (BOC) signals that are widely used in global navigation satellite systems (GNSS). Three-loop tracking methods, such as dual binary phase-shift key…
View article: Efficient Rigid Body Localization Based on Euclidean Distance Matrix Completion for AGV Positioning Under Harsh Environment
Efficient Rigid Body Localization Based on Euclidean Distance Matrix Completion for AGV Positioning Under Harsh Environment Open
In real-world applications for automatic guided vehicle (AGV) navigation, the positioning system based on the time-of-flight (TOF) measurements between anchors and tags is confronted with the problem of insufficient measurements caused by …
View article: Co-Removal Effect and Mechanism of Cr(VI) and Cd(II) by Biochar-Supported Sulfide-Modified Nanoscale Zero-Valent Iron in a Binary System
Co-Removal Effect and Mechanism of Cr(VI) and Cd(II) by Biochar-Supported Sulfide-Modified Nanoscale Zero-Valent Iron in a Binary System Open
This study aimed to explore the co-removal effect and mechanism of Cr(VI) and Cd(II) with an optimized synthetic material. The toxicity and accumulation characteristics of Cr(VI) and Cd(II) encountered in wastewater treatment areas present…
View article: Robust Vehicle Positioning Based on Multi-Epoch and Multi-Antenna TOAs in Harsh Environments
Robust Vehicle Positioning Based on Multi-Epoch and Multi-Antenna TOAs in Harsh Environments Open
For radio-based time-of-arrival (TOA) positioning systems applied in harsh\nenvironments, obstacles in the surroundings and on the vehicle itself will\nblock the signals from the anchors, reduce the number of available TOA\nmeasurements an…
View article: Investigation on Preparation of Glass-ceramics with Iron Tailings
Investigation on Preparation of Glass-ceramics with Iron Tailings Open
The glass-ceramics were prepared by sintering method from an iron tailings in Shangluo area. The optimum process parameters of melting base glass were optimized. The effects of the crystallization temperature on the compressive strength, d…
View article: Sequential Doppler Shift based Optimal Localization and Synchronization with TOA
Sequential Doppler Shift based Optimal Localization and Synchronization with TOA Open
Doppler shift is an important measurement for localization and synchronization (LAS), and is available in various practical systems. Existing studies on LAS techniques in a time division broadcast LAS system (TDBS) only use sequential time…
View article: New Closed-Form Joint Localization and Synchronization Using Sequential One-Way TOAs
New Closed-Form Joint Localization and Synchronization Using Sequential One-Way TOAs Open
It is an essential technique for the moving user nodes (UNs) with clock offset and clock skew to resolve the joint localization and synchronization (JLAS) problem. Existing iterative maximum likelihood methods using sequential one-way time…
View article: Signal Quality Monitoring Based on Chip Domain Observables: Theory, Design, and Implementation
Signal Quality Monitoring Based on Chip Domain Observables: Theory, Design, and Implementation Open
Signal quality monitoring (SQM) is a technique utilized by satellite- and ground-based augmentation systems (SBAS/GBAS) to detect potential hazardous deformations in signals and better protect integrity for safety-critical users. The next …
View article: Efficiently computing Pareto optimal G-skyline query in wireless sensor network
Efficiently computing Pareto optimal G-skyline query in wireless sensor network Open
There are much data transmitted from sensors in wireless sensor network. How to mine vital information from these large amount of data is very important for decision-making. Aiming at mining more interesting information for users, the skyl…
View article: Closed-Form Two-Way TOA Localization and Synchronization for User Devices With Motion and Clock Drift
Closed-Form Two-Way TOA Localization and Synchronization for User Devices With Motion and Clock Drift Open
A two-way time-of-arrival (TOA system is composed of anchor nodes (ANs and\nuser devices (UDs . Two-way TOA measurements between AN-UD pairs are obtained\nvia round-trip communications to achieve localization and synchronization (LAS\nfor …
View article: Preparation and Performance of Vanadium Tailings-Reservoir Sediment-Phosphogypsum-Based Foamed Concrete
Preparation and Performance of Vanadium Tailings-Reservoir Sediment-Phosphogypsum-Based Foamed Concrete Open
Foamed concrete (FC) was prepared from raw materials of vanadium tailings (VTs), reservoir sediment (RS), and phosphogypsum (PG). The physicochemical properties of the raw materials were studied by using X-ray diffraction (XRD), X-ray fluo…
View article: Optimal Two-Way TOA Localization and Synchronization for Moving User Devices With Clock Drift
Optimal Two-Way TOA Localization and Synchronization for Moving User Devices With Clock Drift Open
In two-way time-of-arrival (TOA) systems, a user device (UD) obtains its\nposition and timing information by round-trip communications to a number of\nanchor nodes (ANs) at known locations. Compared with the one-way TOA technique,\nthe two…
View article: Feature-Aided RTK/LiDAR/INS Integrated Positioning System with Parallel Filters in the Ambiguity-Position-Joint Domain for Urban Environments
Feature-Aided RTK/LiDAR/INS Integrated Positioning System with Parallel Filters in the Ambiguity-Position-Joint Domain for Urban Environments Open
As the modern navigation business evolves, demands for high-precision positioning in GNSS-challenged environments increase, and the integrated system composed of Global Navigation Satellite System (GNSS)-based Real-Time Kinematic (RTK), in…
View article: New Closed-form Joint Localization and Synchronization using Sequential TOAs in a Multi-agent System
New Closed-form Joint Localization and Synchronization using Sequential TOAs in a Multi-agent System Open
In a multi-agent system (MAS) comprised of parent nodes (PNs) and child nodes (CNs), a relative spatiotemporal coordinate is established by the PNs with known positions. It is an essential technique for the moving CNs to resolve the joint …
View article: Semidefinite Programming Two-Way TOA Localization for User Devices With Motion and Clock Drift
Semidefinite Programming Two-Way TOA Localization for User Devices With Motion and Clock Drift Open
In two-way time-of-arrival (TOA) systems, a user device (UD) obtains its\nposition by round-trip communications to a number of anchor nodes (ANs) at\nknown locations. The objective function of the maximum likelihood (ML) method\nfor two-wa…
View article: Supplementary Material for: Differences in the Clinical Manifestations and Mortality of Systemic Lupus Erythematosus Onset in Children and Adults: A Systematic Review and Meta-Analysis
Supplementary Material for: Differences in the Clinical Manifestations and Mortality of Systemic Lupus Erythematosus Onset in Children and Adults: A Systematic Review and Meta-Analysis Open
Introduction: The aim of this study was to assess the differences between childhood-onset and adult-onset systemic lupus erythematosus (cSLE and aSLE) for clinical manifestations and mortality using a meta-analytic approach. Methods: The P…
View article: BDS-3 B1 signal modulation and multiplexing techniques with receiving performance
BDS-3 B1 signal modulation and multiplexing techniques with receiving performance Open
The navigation signal structure is one of the primary technologies of the satellite navigation system and also a symbol of the BeiDou global navigation satellite system (BDS-3). In this study, the design requirement and challenges of the B…