The Influence of Varying Atmospheric and Space Weather Conditions on the Accuracy of Position Determination

Nowakowski, Maciej; Dudek, Ewa; Rosiński, Adam

doi:10.3390/s23052814

Cited by 3 publications

(2 citation statements)

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“…The device is susceptible to interference from other electromagnetic devices, 5 and the positioning accuracy can be affected by changing weather conditions. 6 To improve the accuracy and better understand the surroundings, many researchers have loaded different vision sensors. Ma 7 developed a control system that integrated satellite navigation and visual navigation using a monocular camera and a satellite module.…”

Section: Introductionmentioning

confidence: 99%

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DeeplabV3+-based navigation line extraction for the sunlight robust combine harvester

Cheng,

Jin,

Chen

2024

Science Progress

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Visual navigation is widely used in intelligent combine harvesters, but the existing algorithms do not have sufficiently high accuracy of the visual navigation line recognition under different sunlight conditions. To address this problem, this article proposes a sunlight-robust DeepLabV3+-based navigation line extraction method for combine harvesters. The navigation lines are extracted by constructing a new dataset and predicting the boundaries of the areas that have been and have not been cut. To address the problem that DeeplabV3+ is not sufficient light in the DCNN part, improvement is proposed by incorporating the MobileNetV2 module. In image segmentation, the prediction time is 22.5 ms, and the mean intersection over union ( FMIOU) is 0.79. After image segmentation, the navigation lines are drawn using the line segment detection algorithm for the harvester. The proposed method is compared with other mainstream networks, and the prediction results are compared using the line segment detection method. The results show that this method can more quickly identify the navigation lines under different conditions of sunlight with less labeled data than the improved U-Net and DeeplabV3+, which uses Xception as the backbone. Compared to the traditional method and the improved U-Net, this method achieves good results and improves the recognition speed by 27 and 9 ms, respectively.

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Section: Introductionmentioning

confidence: 99%

“…The device is susceptible to interference from other electromagnetic devices, 5 and the positioning accuracy can be affected by changing weather conditions. 6 …”

Section: Introductionmentioning

confidence: 99%

DeeplabV3+-based navigation line extraction for the sunlight robust combine harvester

Cheng,

Jin,

Chen

2024

Science Progress

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Research on ship safety risk early warning model integrating transfer learning and multi-modal learning

Wu,

Wang,

et al. 2024

Applied Ocean Research

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Advanced topographic-geodetic surveys and GNSS methodologies in urban planning

Madimarova,

Nurpeissova,

Ormambekova

et al. 2024

Journal of Applied Geodesy

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The relevance of the problem examined is the need for research to ensure the safety and efficiency of construction and operation of utility networks, in light of the rapid development and growth of urban infrastructure. The purpose of this research is to explore and evaluate the application of topographic-geodetic studies in the context of the design and construction of utilities. The methods used include analytical method, classification method, functional method, statistical method, synthesis method. At the preparatory stage of works the schedule of all stages of project implementation was developed, coordinate and height systems accepted in the territory of the settlement, topographic and geodetic materials, general plans, detailed planning plans, and schemes of settlement development were established. Executive surveys, the territory of Aksukent settlement, and other materials and documents identified in the process of preparatory works were collected and analysed. Using an unmanned aerial vehicle (UAV) data of plan-altitude substantiation and aerial photography were obtained, orthophoto map in WGS84 and MSC coordinate system of the Aksukent settlement territory was obtained. To update the data on existing points of the state geodetic network, complexes of geodetic measurements and calculations were performed and parameters (key) of transformation between WGS84 and WCS coordinate systems were obtained. In the course of the field works, deciphering work was performed based on the obtained orthophoto. The inventory of engineering networks was conducted, which included engineering-geodetic surveys of underground and surface engineering networks (sewerage, water supply, gas supply, heating mains), and engineering-geodetic surveys of overhead and underground cable power lines. The results of the survey of the traces of engineering communications on the territory of Aksukent village were agreed with the balance holders of networks JSC “Turkestan Regional Telecommunications Directorate Kazakhtelecom”, JSC “KazTransGas Aimak”, LLP “Sairam Tazalyk”, LLP “Ontustik Zharyk Transit”. The research is of practical significance, as it contributes to the accurate determination of network parameters, identification of potential problem areas and ensuring effective planning and management of engineering projects.

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The Influence of Varying Atmospheric and Space Weather Conditions on the Accuracy of Position Determination

Cited by 3 publications

References 50 publications

DeeplabV3+-based navigation line extraction for the sunlight robust combine harvester

DeeplabV3+-based navigation line extraction for the sunlight robust combine harvester

Research on ship safety risk early warning model integrating transfer learning and multi-modal learning

Advanced topographic-geodetic surveys and GNSS methodologies in urban planning

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