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46 Results Found

  • Article
  • Open Access
21 Citations
4,029 Views
10 Pages

8 October 2019

With the rapid development of the satellite navigation industry, low-cost and high-precision Global Navigation Satellite System (GNSS) positioning has recently become a research hotspot. The traditional application of GNSS may be further extended tha...

  • Article
  • Open Access
13 Citations
5,434 Views
20 Pages

Galileo Augmenting GPS Single-Frequency Single-Epoch Precise Positioning with Baseline Constrain for Bridge Dynamic Monitoring

  • Qiuzhao Zhang,
  • Chun Ma,
  • Xiaolin Meng,
  • Yilin Xie,
  • Panagiotis Psimoulis,
  • Laiyi Wu,
  • Qing Yue and
  • Xinjun Dai

20 February 2019

The Single-frequency Single-epoch double-differenced baseline resolution technique of Global Positioning System (GPS) provides a good opportunity for monitoring the displacement or deflection behavior of bridges under different loading conditions in...

  • Article
  • Open Access
30 Citations
5,675 Views
11 Pages

2 December 2015

For Global Navigation Satellite System (GNSS) single frequency, single epoch attitude determination, this paper proposes a new reliable method with baseline vector constraint. First, prior knowledge of baseline length, heading, and pitch obtained fro...

  • Article
  • Open Access
9 Citations
3,077 Views
15 Pages

11 August 2022

The single-baseline solution (SBS) model has been widely adopted by the existing global navigation satellite system (GNSS) deformation monitoring systems due to its theoretical simplicity and ease of implementation. However, the SBS model neglects th...

  • Article
  • Open Access
17 Citations
7,415 Views
21 Pages

21 June 2013

In the field of Global Navigation Satellite System (GNSS) attitude determination, the constraints usually play a critical role in resolving the unknown ambiguities quickly and correctly. Many constraints such as the baseline length, the geometry of m...

  • Article
  • Open Access
716 Views
23 Pages

Customizable Length Constrained Image-Text Summarization via Knapsack Optimization

  • Xuan Liu,
  • Xiangyu Qu,
  • Yu Weng,
  • Yutong Gao,
  • Zheng Liu and
  • Xianggan Liu

2 October 2025

With the proliferation of multimedia data, controllable summarization generation has become a key focus in Artificial Intelligence Content Generation. However, many traditional methods lack precise control over output length, often resulting in summa...

  • Article
  • Open Access
8 Citations
5,176 Views
19 Pages

The problem of 3D human pose estimation (HPE) has been the focus of research in recent years, yet precise estimation remains an under-explored challenge. In this paper, the merits of both multiview images and wearable IMUs are combined to enhance the...

  • Article
  • Open Access
11 Citations
10,905 Views
15 Pages

20 October 2010

Integrating the precise GPS carrier phases and INS sensor technologies is a methodology that has been applied indispensably in those application fields requiring accurate and reliable position, velocity, and attitude information. However, conventiona...

  • Article
  • Open Access
6 Citations
2,307 Views
21 Pages

30 December 2021

The global navigation satellite system (GNSS)-based multi-antenna attitude determination method has the advantages of a simple algorithm and no error accumulation with time in long endurance operation. However, it is sometimes difficult to simultaneo...

  • Article
  • Open Access
9 Citations
3,274 Views
14 Pages

28 March 2023

Satellite edge computing (SEC) has garnered significant attention for its potential to deliver services directly to users. However, the uneven distribution of receiving tasks among satellites in the constellation can lead to uneven utilization of com...

  • Article
  • Open Access
2 Citations
2,113 Views
25 Pages

Structure Design on Thermoplastic Composites Considering Forming Effects

  • Wei Xie,
  • Kai Song,
  • Ju Yang,
  • Fengyu Wang,
  • Linjie Dong,
  • Shengjie Jin,
  • Guohua Zhu and
  • Zhen Wang

15 October 2024

Carbon fiber reinforced polypropylene (CF/PP) thermoplastics integrate the superior formability of fabrics with the recoverable characteristics of polypropylene, making them a pivotal solution for achieving lightweight designs in new energy vehicles....

  • Article
  • Open Access
1 Citations
1,550 Views
17 Pages

Whole-Body 3D Pose Estimation Based on Body Mass Distribution and Center of Gravity Constraints

  • Fan Wei,
  • Guanghua Xu,
  • Qingqiang Wu,
  • Penglin Qin,
  • Leijun Pan and
  • Yihua Zhao

25 June 2025

Estimating the 3D pose of a human body from monocular images is crucial for computer vision applications, but the technique remains challenging due to depth ambiguity and self-occlusion. Traditional methods often suffer from insufficient prior knowle...

  • Article
  • Open Access
305 Views
19 Pages

9 January 2026

Grammar induction runs into a serious problem due to the exponential growth of the number of possible derivation trees as sentence length increases, which makes unsupervised parsing both computationally demanding and highly indeterminate. This paper...

  • Article
  • Open Access
11 Citations
3,279 Views
21 Pages

13 July 2021

GNSS attitude determination has been widely used in various navigation and positioning applications, due to its advantages of low cost and high efficiency. The navigation positioning and attitude determination modules in the consumer market mostly us...

  • Article
  • Open Access
4 Citations
3,392 Views
15 Pages

Comprehensive Document Summarization with Refined Self-Matching Mechanism

  • Biqing Zeng,
  • Ruyang Xu,
  • Heng Yang,
  • Zibang Gan and
  • Wu Zhou

9 March 2020

Under the constraint of memory capacity of the neural network and the document length, it is difficult to generate summaries with adequate salient information. In this work, the self-matching mechanism is incorporated into the extractive summarizatio...

  • Article
  • Open Access
1 Citations
531 Views
16 Pages

From Invariance to Symmetry Breaking in FIM-Aware Cooperative Heterogeneous Agent Networks

  • Jihua Dou,
  • Kunpeng Ouyang,
  • Zefei Wu,
  • Zhixin Hu,
  • Jianxin Lin and
  • Huachuan Wang

7 November 2025

We recast cooperative localization and scheduling in heterogeneous multi-agent systems through the lens of symmetry and symmetry breaking. On the geometric side, the Fisher Information Matrix (FIM) objective is invariant to rigid Euclidean transforma...

  • Article
  • Open Access
8 Citations
7,651 Views
14 Pages

Comparison of Constrained Parameterisation Strategies for Aerodynamic Optimisation of Morphing Leading Edge Airfoil

  • Andrea Magrini,
  • Ernesto Benini,
  • Rita Ponza,
  • Chen Wang,
  • Hamed Haddad Khodaparast,
  • Michael I. Friswell,
  • Volker Landersheim,
  • Dominik Laveuve and
  • Conchin Contell Asins

In the context of ambitious targets for reducing environmental impact in the aviation sector, dictated by international institutions, morphing aircraft are expected to have potential for achieving the required efficiency increases. However, there are...

  • Article
  • Open Access
19 Citations
6,049 Views
20 Pages

14 March 2018

For InSAR topographic mapping, multi-baseline InSAR height estimation is known to be an effective way to facilitate phase unwrapping by significantly increasing the ambiguity intervals and maintaining good height measurement sensitivity, especially i...

  • Article
  • Open Access
4 Citations
3,922 Views
27 Pages

In view of the future of the Internet of Things (IoT), the number of edge devices and the amount of sensing data and communication data are expected to increase exponentially. With the emergence of new computing-intensive tasks and delay-sensitive ap...

  • Article
  • Open Access
1,370 Views
9 Pages

Owl pellets offer a distinctive, noninvasive perspective on the feeding ecology and morphological traits of owl species. This study presents the first comprehensive comparison of pellet dimensions—specifically length, breadth, and mass—ac...

  • Article
  • Open Access
646 Views
22 Pages

Emergency Relief Material Distribution Path Optimization Under Multiple Constraints

  • Haoran He,
  • Xiaoxiong Zhang,
  • Qiang Fan,
  • Jun Yang,
  • Xiaolei Zhou and
  • Bing Yu

28 October 2025

To overcome the limitations of traditional methods in emergency response scenarios—such as limited adaptability during the search process and a tendency to fall into local optima, which reduce the overall efficiency of emergency supply distribu...

  • Article
  • Open Access
3 Citations
2,337 Views
16 Pages

14 October 2022

One of the important applications of the space tethered system is formation flying. To satisfy the requirement for interferometry of ground targets by remote-sensing satellites, a new type of tethered solar sail spacecraft has been proposed in recent...

  • Article
  • Open Access
15 Citations
3,248 Views
25 Pages

A Registration Algorithm for Astronomical Images Based on Geometric Constraints and Homography

  • Bin Lin,
  • Xiangpeng Xu,
  • Zhihua Shen,
  • Xia Yang,
  • Lijun Zhong and
  • Xiaohu Zhang

3 April 2023

The registration of astronomical images, is one of the key technologies to improve the detection accuracy of small and weak targets during astronomical image-based observation. The error of registration has a great influence on the trace association...

  • Article
  • Open Access
20 Citations
7,224 Views
13 Pages

Optimization of the LS89 Axial Turbine Profile Using a CAD and Adjoint Based Approach

  • Ismael Sanchez Torreguitart,
  • Tom Verstraete and
  • Lasse Mueller

The LS89 high pressure axial turbine vane was originally designed and optimized for a downstream isentropic Mach number of 0.9. This profile has been widely used for computational fluid dynamics (CFD) validation in the open literature but very few at...

  • Proceeding Paper
  • Open Access
1 Citations
1,335 Views
12 Pages

Winglet Design for Class I Mini UAV—Aerodynamic and Performance Optimization

  • Eleftherios Nikolaou,
  • Eleftherios Karatzas,
  • Spyridon Kilimtzidis and
  • Vassilis Kostopoulos

The aerodynamic performance of an aircraft can be enhanced by incorporating wingtip devices, or winglets, which primarily reduce lift-induced drag created by wingtip vortices. This study outlines an optimization procedure for implementing winglets on...

  • Article
  • Open Access
1,286 Views
35 Pages

30 September 2025

Sensor-rich Automated Guided Vehicles (AGVs) are increasingly deployed in logistics, yet large fleets relying on fixed tracks face high maintenance costs and frequent route conflicts. This study targets rail-based material handling and proposes an en...

  • Article
  • Open Access
11 Citations
5,427 Views
20 Pages

16 January 2019

Aircraft pose estimation is a necessary technology in aerospace applications, and accurate pose parameters are the foundation for many aerospace tasks. In this paper, we propose a novel pose estimation method for straight wing aircraft without relyin...

  • Article
  • Open Access
961 Views
15 Pages

21 October 2025

This paper proposes a scheme for enhancing covert communication in cognitive radio networks (CRNs) using a reconfigurable intelligent surface (RIS), which ensures that transmissions by secondary users (SUs) remains statistically undetectable by adver...

  • Article
  • Open Access
180 Views
15 Pages

27 January 2026

Objective: We examine whether a finite-range scalar–tensor modification of gravity can be simultaneously compatible with cosmological background data, galaxy rotation curves, and local/astrophysical consistency tests, while satisfying the lumin...

  • Article
  • Open Access
2,436 Views
21 Pages

21 August 2024

Camera arrays can enhance the signal-to-noise ratio (SNR) between dim targets and backgrounds through multi-view synthesis. This is crucial for the detection of dim targets. To this end, we design and develop an infrared camera array system with a la...

  • Article
  • Open Access
18 Citations
3,288 Views
23 Pages

12 July 2022

The breakthrough of wireless energy transmission (WET) technology has greatly promoted the wireless rechargeable sensor networks (WRSNs). A promising method to overcome the energy constraint problem in WRSNs is mobile charging by employing a mobile c...

  • Article
  • Open Access
13 Citations
3,081 Views
20 Pages

Ultra-wideband (UWB) technology is suitable for indoor positioning owing to its high resolution and penetration. However, the current UWB positioning methods not only fail to fully analyze errors, but do not have the ability to eliminate gross and la...

  • Article
  • Open Access
2 Citations
4,809 Views
17 Pages

A Long Baseline Three Carrier Ambiguity Resolution with a New Ionospheric Constraint

  • Yafei Ning,
  • Yunbin Yuan,
  • Zhen Huang,
  • Yanju Chai and
  • Bingfeng Tan

Global navigation satellite sensors can transmit three frequency signals. When the classical three-carrier ambiguity resolution (TCAR) is applied to long baselines of hundreds of kilometres, the narrow-lane integer ambiguity resolution (IAR) is affec...

  • Article
  • Open Access
44 Citations
13,130 Views
20 Pages

Gust Alleviation of a Large Aircraft with a Passive Twist Wingtip

  • Shijun Guo,
  • Jaime Espinosa De Los Monteros and
  • Ying Liu

3 April 2015

This paper presents an investigation into the gust response and wing structure load alleviation of a 200-seater aircraft by employing a passive twist wingtip (PTWT). The research was divided into three stages. The first stage was the design and anal...

  • Article
  • Open Access
9 Citations
6,890 Views
14 Pages

Multidisciplinary Optimization Design of Low-Noise Propellers

  • Dongwen Xue,
  • Qun Yan,
  • Zhuohan Li and
  • Kai Wei

In this paper, a multidisciplinary optimization design method and its verification of low-noise aircraft propellers considering aerodynamics, noise, and structural strength were carried out to further reduce the aerodynamic noise of the aircraft prop...

  • Article
  • Open Access
418 Views
20 Pages

28 October 2025

To address the challenges of inefficient path planning, discontinuous trajectories, and inadequate safety margins in autonomous spraying vehicles for greenhouse environments, this paper proposes a hierarchical motion control architecture. At the glob...

  • Article
  • Open Access
311 Views
20 Pages

LSTM-Based Interpolation of Single-Differential Ionospheric Delays for PPP-RTK Positioning

  • Minghui Lyu,
  • Genyou Liu,
  • Run Wang,
  • Shengjun Hu,
  • Gongwei Xiao and
  • Dong Lyu

9 December 2025

The accurate and rapid estimation of ionospheric delays is essential for PPP-RTK positioning. While traditional spatial interpolation methods like Kriging rely solely on geographic correlations, they often fail to capture rapid temporal variations in...

  • Article
  • Open Access
5 Citations
3,949 Views
18 Pages

Joint Approach for Vehicle Routing Problems Based on Genetic Algorithm and Graph Convolutional Network

  • Dingding Qi,
  • Yingjun Zhao,
  • Zhengjun Wang,
  • Wei Wang,
  • Li Pi and
  • Longyue Li

8 October 2024

The logistics demands of industries represented by e-commerce have experienced explosive growth in recent years. Vehicle path-planning plays a crucial role in optimization systems for logistics and distribution. A path-planning scheme suitable for an...

  • Article
  • Open Access
471 Views
20 Pages

1 December 2025

Time-series anomaly detection is imperative for ensuring reliability and safety in intelligent manufacturing systems. However, real-world environments typically provide only normal operating data and exhibit significant periodicity, noise, imbalance,...

  • Article
  • Open Access
4 Citations
2,087 Views
39 Pages

21 July 2025

To address the modeling complexity and multi-objective collaborative optimization challenges in multi-depot and multiple unmanned aerial vehicle (UAV) delivery task planning, this paper proposes a bi-layer planning framework, which comprehensively co...

  • Article
  • Open Access
9 Citations
3,796 Views
22 Pages

Low-Cost Single-Frequency DGNSS/DBA Combined Positioning Research and Performance Evaluation

  • Shengliang Wang,
  • Xianshu Dong,
  • Genyou Liu,
  • Ming Gao,
  • Wenhao Zhao,
  • Dong Lv and
  • Shilong Cao

26 January 2022

In recent years, low-cost single-frequency GNSS receivers have been widely used in many fields such as mass navigation and deformation monitoring; however, due to the poor signal quality of low-cost patch antennae, it is difficult for carrier phase r...

  • Article
  • Open Access
816 Views
17 Pages

Early Mortality and Mid-Term Durability of Open Surgical Repair for Complex Abdominal Aortic Aneurysms in Octogenarians: A Retrospective Analysis from Two Tertiary Referral Centers

  • Francesco Andreoli,
  • Alexandre Azoulay,
  • Ludovic Canaud,
  • Pierre Alric,
  • Paul Girardet,
  • Pietro Federico Ricciardi,
  • Ludovica Ettorre,
  • Jacopo Galafassi,
  • Daniel Schmauss and
  • Giorgio Prouse
  • + 2 authors

2 October 2025

Background/Objectives: Complex endovascular solutions have expanded treatment options for complex abdominal aortic aneurysms (cAAA), particularly in elderly high-risk patients. However, these techniques are limited by anatomical constraints and costs...

  • Article
  • Open Access
663 Views
22 Pages

Radar Foot Gesture Recognition with Hybrid Pruned Lightweight Deep Models

  • Eungang Son,
  • Seungeon Song,
  • Bong-Seok Kim,
  • Sangdong Kim and
  • Jonghun Lee

13 November 2025

Foot gesture recognition using a continuous-wave (CW) radar requires implementation on edge hardware with strict latency and memory budgets. Existing structured and unstructured pruning pipelines rely on iterative training–pruning–retrain...

  • Article
  • Open Access
20 Citations
3,062 Views
21 Pages

11 April 2024

This work proposes and examines the feasibility of next-generation 0.3 THz phase shifters realized with liquid crystals (LCs) as tunable dielectrics coaxially filled in the transmission line. The classic coaxial transmission line topology is robust t...

  • Article
  • Open Access
1,590 Views
27 Pages

Advanced Drone Routing and Scheduling for Emergency Medical Supply Chains in Essex

  • Shabnam Sadeghi Esfahlani,
  • Sarinova Simanjuntak,
  • Alireza Sanaei and
  • Alex Fraess-Ehrfeld

22 September 2025

Rapid access to defibrillators, blood products, and time-critical medicines can improve survival, yet urban congestion and fragmented infrastructure delay deliveries. We present and evaluate an end-to-end framework for beyond-visual-line-of-sight (BV...

  • Article
  • Open Access
21 Citations
3,658 Views
26 Pages

20 July 2023

We present a novel and first-of-its-kind information-theoretic framework for the key design consideration and implementation of a ground-to-unmanned Aerial Vehicle (UAV) (G2U) communication network with an aim to minimize end-to-end transmission dela...