Showing 581 - 600 results of 1,484 for search '"satellites"', query time: 0.05s Refine Results
  1. 581

    Fast Image Registration for Spacecraft Autonomous Navigation Using Natural Landmarks by Yun-Hua Wu, Lin-Lin Ge, Feng Wang, Bing Hua, Zhi-Ming Chen, Feng Yu

    Published 2018-01-01
    “…Here, SURF is used to extract the features from satellite images because of its scale- and rotation-invariant properties and low computational cost. …”
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    Robust Control Allocation among Overactuated Spacecraft Thrusters under Ellipsoidal Uncertainty by Chenyang Duan, Shijie Zhang, Yafei Zhao, Xianren Kong

    Published 2014-01-01
    “…In this way, difficulties of solving the problem caused by parameter uncertainties are avoided effectively. Finally, we take satellite rendezvous and docking as simulation scenarios; it is verified that the cumulative distribution error and maximum error can be reduced by more than 15% when the random error of control efficiency matrix is 5%–20%; also, precision of thruster allocation is improved.…”
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  5. 585

    Benefit of Relaxation-Type Damping on the Performance of a Six-Degree-of-Freedom Microvibration Isolation Device for Control Moment Gyroscope by Xingtian Liu, Changbao Shao, Liping Zhou, Xiangsen Kong

    Published 2021-01-01
    “…In order to provide an ultraquiet environment for spacecraft payload, a six-degree-of-freedom microvibration isolation device for satellite control moment gyro (CMG) is proposed in this paper. …”
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    Accurate 3D Mapping Algorithm for Flexible Antennas by Saed Asaly, Boaz Ben-Moshe, Nir Shvalb

    Published 2018-01-01
    “…Consider a high-gain satellite flexible antenna; even a submillimeter change in the antenna surface may lead to a considerable loss in the antenna gain. …”
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  9. 589

    Use of Landsat Land Surface Temperature and Vegetation Indices for Monitoring Drought in the Salt Lake Basin Area, Turkey by Osman Orhan, Semih Ekercin, Filiz Dadaser-Celik

    Published 2014-01-01
    “…The main purpose of this paper is to investigate multitemporal land surface temperature (LST) changes by using satellite remote sensing data. The study included a real-time field work performed during the overpass of Landsat-5 satellite on 21/08/2011 over Salt Lake, Turkey. …”
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  10. 590

    Monitoring Coastal Water Turbidity Using Sentinel2—A Case Study in Los Angeles by Yuwei Kong, Karina Jimenez, Christine M. Lee, Sophia Winter, Jasmine Summers-Evans, Albert Cao, Massimiliano Menczer, Rachel Han, Cade Mills, Savannah McCarthy, Kierstin Blatzheim, Jennifer A. Jay

    Published 2025-01-01
    “…This study evaluates the potential of satellite remote sensing to augment traditional monitoring by analyzing the relationship between in situ and satellite-derived turbidity data. …”
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    Space Geodesy Data Implementation for Earth System Geodynamics Monitoring: A Case Study of the Aegean Microplate by Smrčková Daša, Chromčák Jakub, Mužík Juraj, Ižvoltová Jana, Kostelecký Jan

    Published 2024-12-01
    “…By tracking changes in the position of unique points on the Earth’s surface using space geodesy methods (GNSS – Global Navigation Satellite System, VLBI – Very-long Baseline Interferometry, SLR – Satellite Laser Ranging, DORIS – Doppler Orbitography and Radiopositioning Integrated by Satellite), it is possible to indirectly track the movement of the Earth system and describe changes, anomalies and their evolution over time.…”
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    A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix by Yanyun Gong, Ling Wang, Rugui Yao, Zhaolin Zhang

    Published 2017-01-01
    “…The Global Navigation Satellite System (GNSS) receiver is vulnerable to active jamming, which results in imprecise positioning. …”
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  15. 595

    Vertical and spatial differences in ozone formation sensitivities under different ozone pollution levels in eastern Chinese cities by Zhuang Wang, Hao Zhang, Chune Shi, Xianguang Ji, Yizhi Zhu, Congzi Xia, Xiaoyun Sun, Meng Zhang, Xinfeng Lin, Shaowei Yan, Yuan Zhou, Chengzhi Xing, Yujia Chen, Cheng Liu

    Published 2025-01-01
    “…By combining ground–and satellite–based remote sensing with ground station observations, we identified large spatio–temporal differences in the ozone formation sensitivity in eastern Chinese cities under different ozone pollution levels. …”
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    Remote Characterization and Dissemination of Disper sion Compensated Ultrashort Pulses Through Dynamic Fiber Optic Links by C G Lakshmi, V R Supradeepa

    Published 2025-01-01
    “…For robust delivery, accurate characterization of the pulse dispersion at the satellite locations without specialized equipment and its compensation is essential. …”
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