Qingyuan Xia

Research on multi-task assignment method of multi-configuration UAV based on improved hybrid algorithm

Z. Zheng, Qingyuan Xia, Shengwei Li, Bohai Deng

In this paper, an improved hybrid algorithm based on particle swarm optimization (PSO) and genetic algorithm (GA) is formed to solve the problem of "premature" and slow convergence. First of all, this paper improves the multi-task Collaborative assignment model (CMTAP), comprehensively considers …

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A Probabilistic Method-Based Smartphone GNSS Fault Detection and Exclusion System Utilizing PDR Step Length

Changhui Jiang, Yuwei Chen, Zuoya Liu, Qingyuan Xia et autres

A smartphone equipped with a Global Navigation Satellite System (GNSS) module can generate positional information for location-based services. However, GNSS signals are susceptible to fragility, multipath (MP), and Non-Line-Of-Sight (NLOS) interference, which can lead to a degradation in the accuracy of GNSS …

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UWB and IMU Fusion Localization System Based on Unmanned Vehicles in Complex Factory Areas

Chengxiang Zhou, Qingyuan Xia

In the face of serious satellite signal occlusion in the factory environment, using GPS and IMU combination for positioning still results in positioning jumps of about 1 meter, which cannot meet the positioning requirements of heavy trucks. Moreover, there is a large …

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Engineering Natural and Recombinant Silks for Sustainable Biodevices

Xinchen Shen, Haoyuan Shi, Hongda Wei, Boxuan Wu et autres

Silk fibroin (SF) is a structural protein derived from natural silkworm silks. Materials fabricated based on SF usually inherit extraordinary physical and biological properties, including high mechanical strength, toughness, optical transparency, tailorable biodegradability, and biocompatibility. Therefore, SF has attracted interest in the …

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Ti-modification enhanced the activity of flexible mesh-type Mn/γ-Al2O3/Al catalyst for indoor HCHO removal under humid conditions

Zukun Xie, Qingyuan Xia, Lei Ji, Qingli Shu et autres

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A LSTM-RNN-Assisted Vector Tracking Loop for Signal Outage Bridging

Di Liu, Qingyuan Xia, Changhui Jiang, Chaochen Wang et autres

Global Navigation Satellite System (GNSS) has been the most popular tool for providing positioning, navigation, and timing (PNT) information. Some methods have been developed for enhancing the GNSS performance in signal challenging environments (urban canyon, dense foliage, signal blockage, multipath, and none-line-of-sight …

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A Low-Cost Method of Improving the GNSS/SINS Integrated Navigation System Using Multiple Receivers

Di Liu, Hengjun Wang, Qingyuan Xia, Changhui Jiang

GNSS (global navigation satellite system) and SINS (strap-down inertial navigation system) integrated navigation systems have been the apparatus for providing reliable and stable position and velocity information (PV). Commonly, there are two solutions to improve the GNSS/SINS integration navigation system accuracy, i.e., …

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Exploiting color name space for salient object detection

Jing Lou, Huan Wang, Longtao Chen, Fenglei Xu et autres

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Learning Deeply Supervised Scene Text Detectors from Scratch

Wei Zhu, Mingwu Ren, Qingyuan Xia

In this paper, we propose deeply supervised scene text detector (DSTD), a framework that can be learned from scratch. Our proposed method mainly addresses two problems. The first one is that state-of-the-art text detectors rely heavily on the off-the-shelf pre-trained models, which …

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An illumination robust road detection method based on color names and geometric information

Fenglei Xu, Bingwen Hu, Lineng Chen, Huan Wang et autres

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Analysis of the baseline data based GPS spoofing detection algorithm

Changhui Jiang, Shuai Chen, Yuwei Chen, Yuming Bo et autres

The location service provided by the Global Navigation Satellite System (GNSS) has gained great impact on our life. However, the signal blockage, jamming and spoofing attack lead to a serious impediment to its further application. The receivers are able to be aware …

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Single Shot Text Detector with Rotational Prior Boxes

Wei Zhu, Jing Lou, Qingyuan Xia, Mingwu Ren

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