Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision [PDF]
SensorsIn the zenith-horizon placement for achieving minimum geometric dilution of precision (GDOP), one access node or sensor is positioned along the z-axis, while the remaining nodes are placed symmetrically on a three-dimensional (3D) cone.
Yanwu Ding +3 more
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A GDOP-Based Performance Description of TOA Localization with Uncertain Measurements [PDF]
Remote Sensing, 2022 In this paper, we study a geometric dilution of a precision (GDOP)-based localization performance metric for multisite radar adopting a time-of-arrival (TOA)-based localization scheme.
Yao Wang +3 more
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Application of GOA-GDOP in aircraft collaborative detection [PDF]
ITM Web of Conferences, 2022 The cooperative detection of aircraft has been widely concerned by scholars at home and abroad in recent years. This paper mainly studies the positioning accuracy of the sensor-carrying aircraft in collaborative detection.
Ding Liquan +4 more
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A compatible gravity-driven organoid perfusion (GDOP) platform for drug screening with sensitivity and toxicity process evaluation [PDF]
Communications BiologyHigh-throughput experiments, unidirectional fluid replacement, real-time process monitoring, and simultaneous drug sensitivity and toxicity tests are hard to achieve on most existing tumor organoid chips.
Shun Wang +9 more
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A New Criterion Construction and Verification for GNSS Satellite Selection Based on Near-Real-Time Accuracy [PDF]
SensorsGlobal Navigation Satellite Systems (GNSS) have undergone more than half a century of development and construction, with more than a hundred navigation satellites currently providing precise and reliable positioning, navigation, and timing (PNT) services
Yue Zuo, Yibin Yao, Mingxian Hu
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Multi-Source Weighted Localization Based on Cascaded DOA-TDOA [PDF]
SensorsTime Difference of Arrival (TDOA)-based localization is widely used for its stability and high accuracy. However, in multi-source scenarios, TDOA measurements from multiple sources become entangled, making it difficult to separate and correctly associate
Jinshen Fang +3 more
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Dynamic base stations selection method for passive location based on GDOP. [PDF]
PLoS ONE, 2022 For the problem of passive location in mobile cellular network, base stations (BSs) selection can improve positioning accuracy. Through the analysis of base station layout in cellular networks, using Geometric Dilution of Precision (GDOP) as the ...
Sheng Miao, Liang Dong, Jingyu Hou
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Research on the Loran-C Pseudorange Positioning Method Based on an Ellipsoidal Geodesic Model and Its Application in Inland Areas [PDF]
SensorsThe Loran-C system employs the spherical hyperbola positioning (SHP) method. However, SHP has three drawbacks in inland regions: first, approximating the Earth’s ellipsoid as a sphere introduces positioning errors; second, hyperbola positioning ...
Ao Gao +6 more
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HDOP and VDOP Analysis in an Ideal Placement Environment for Dual GNSSs [PDF]
Sensors, 2022 Increasing the number of satellites in a global navigation satellite system (GNSS) improves the positioning accuracy and increases availability. However, it reduces the positioning accuracy improvement rate and increases the calculation loads, which can ...
JinHyeok Jang +3 more
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The Recurrence Algorithm for GDOP and Positioning Solution in GPS
Tongxin xuebao, 1998 This paper proves theoretically that GDOP decreases as the number of satellite increases and proposes two recurrence algorithms for calculating the GDOP and positioning solution.These algorithms not only can recursively calculate the GDOP and positioning
Chang Qing Liu Zhongkan Zhang QiShan
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