Quantitative Research on GPS Positioning in an East-North-Up Coordinate System

Guo, Yanbing; Miao, Lingjuan; Zhang, Xi

doi:10.23919/chicc.2019.8866190

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…GPS positioning error is affected by many factors, including satellite ephemeris error, satellite clock error, SA interference error, relative deviation of motion process, and center deviation of receiving antenna [5].…”

Section: Simulation Analysis Of Gps Positioning Errormentioning

confidence: 99%

Error Analysis on Ultra-Short Baseline Positioning System

Sun

et al. 2023

J. Phys.: Conf. Ser.

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Aiming at the problem of low accuracy of ultrashort baseline positioning system in practical applications, this paper introduces hydroacoustic channel response error and transducer distortion error, and analyses the influence of each factor on positioning accuracy in the positioning process according to the time delay estimation method. Finally, the major and minor factors are distinguished according to the influence mechanism and the degree of influence of the error factors. The results show that the ship attitude error and hydroacoustic channel error are the main factors affecting the positioning accuracy.

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Section: Simulation Analysis Of Gps Positioning Errormentioning

confidence: 99%

Error Analysis on Ultra-Short Baseline Positioning System

Sun

et al. 2023

J. Phys.: Conf. Ser.

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“…In the first step, the operators will configure the delivery point coordinates by simple GPS (herefore this coordinates will present errors up to 9 m, which is the normal positioning precision of GPS [22]), the generic ship's region of the point (i.e., bow, mid-ship, or stern), the desired distance between the UAV and the ship at the end of this stage, the flight height, and finally, the maximum flight speed. The UAV will take off and fly to the calculated position following a planned path based on a native GPS feedback controller.…”

Section: Background and Related Workmentioning

confidence: 99%

Hybrid methodology based on computational vision and sensor fusion for assisting autonomous UAV on offshore messenger cable transfer operation

et al. 2022

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The recent development of new offshore projects in pre-salt deepwater fields has placed offshore loading operations as the main production outflow alternative, increasing the operational complexity and risks. Numerous dangerous situations are associated with oil offloading, such as the messenger line transfer during the mooring stage. Nowadays, this critical task is realized by launching a thin messenger cable using the pneumatic line throwing apparatus. This is a complex and slow process since the operation usually occurs with the ship opposite to the wind. This work proposes a hybrid flight methodology based on computer vision and sensor fusion techniques for autonomous unmanned aerial vehicles (UAVs). The UAV takes off from an oil rig and precisely reaches a specific point in the shuttle tanker without using expensive positioning devices and augmenting UAV’s orientation (yaw) precision since the compass can suffer from severe interference due to naval metallic structures near the vehicle. The proposed framework was tested in a realistic simulated environment considering several practical operational constraints. The results demonstrated both the robustness and efficiency of the methodology.

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Quantitative Research on GPS Positioning in an East-North-Up Coordinate System

Cited by 2 publications

References 5 publications

Error Analysis on Ultra-Short Baseline Positioning System

Error Analysis on Ultra-Short Baseline Positioning System

Hybrid methodology based on computational vision and sensor fusion for assisting autonomous UAV on offshore messenger cable transfer operation

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