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Showing 941 - 960 results of 1,038 for search 'improved d* line algorithm', query time: 0.80s Refine Results
  1. 941

    Time and Covariance Threshold Triggered Optimal Uncooperative Rendezvous Using Angles-Only Navigation by Yue You, Hua Wang, Christophe Paccolat, Volker Gass, Jean-Philippe Thiran, Jiu Ren Li

    Published 2017-01-01
    “…Numerical simulation proved that it is feasible to control the spacecraft with a two-line element- (TLE-) level uncertain, 34.6% of range, initial relative state to a 100 m v-bar relative station keeping point, at where the trajectory dispersion reduces to 3.5% of range, under a 30% data gap per revolution on account of the eclipse. …”
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  2. 942

    A Fault-Tolerant Multiple Sensor Fusion Approach Applied to UAV Attitude Estimation by Yu Gu, Jason N. Gross, Matthew B. Rhudy, Kyle Lassak

    Published 2016-01-01
    “…A novel sensor fusion design framework is presented with the objective of improving the overall multisensor measurement system performance and achieving graceful degradation following individual sensor failures. …”
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  3. 943

    Application of Asynchronous Motor Speed Sensorless Control in Wuxi Metro by NIU Haiyan

    Published 2014-01-01
    “…Aim to metro application, without speed sensor control algorithm based on model reference adaptive system (MRAS) was introduced in detail, and the methods of the stator resistance identification to improve the accuracy of speed estimation in very low-speed region was proposed to meet metro large torque startup requirement. …”
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  4. 944

    Multi-ray channel modeling for programmable wireless environments in the terahertz band by Wenyu LUO, Hechao LIU

    Published 2019-07-01
    “…Terahertz communication system based on programmable wireless environment allowed programming customization of electromagnetic wave propagation in the most suitable ways for different wireless devices.It could not only improve serious fading,interference and non-line-of-sight problems,but also significantly enhance the security and privacy of the system.The channel modeling of terahertz wireless communication in programmable wireless environment was focused.Firstly,a multi-ray channel model for terahertz-band programmable wireless environment was established based on ray tracing technology as well as the propagation model of line-of-sight and non-line-of-sight.Then,based on the established propagation model,reflection coefficient,the broadband channel capacity under the water-filling power allocation algorithm and the RMS delayed extension were further studied.The simulation and analysis results show that the programmable wireless environment greatly reduces the influence of path loss and multipath fading in terahertz wireless transmission through active interference in electromagnetic wave transmission,improves the transmission capacity of terahertz communication system,which provides a reference for the later design of terahertz communication system,especially indoor terahertz communication system.…”
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  5. 945

    Enhancing CO2 emissions prediction for electric vehicles using Greylag Goose Optimization and machine learning by Ahmed El-Sayed Saqr, Mohamed S. Saraya, El-Sayed M. El-Kenawy

    Published 2025-05-01
    “…Finally, the study does a comparative analysis with some established optimization algorithms in hyperparameter tuning regarding an improved accuracy model. …”
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  6. 946

    An Enhanced ZigBee-Based Indoor Localization Method Using Multi-Stage RSSI Filtering and LQI-Aware MLE by Jianming Li, Shuyan Yu, Zhe Wei, Zhanpeng Zhou

    Published 2025-05-01
    “…Building on the filtered data, the proposed method introduces a noise and link quality indicator (LQI)-based dynamic weighting mechanism that adjusts the contribution of each distance estimate during localization. …”
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  7. 947

    A spectral Fletcher-Reeves conjugate gradient method with integrated strategy for unconstrained optimization and portfolio selection. by Nasiru Salihu, Sulaiman M Ibrahim, P Kaelo, Issam A R Moghrabi, Elissa Nadia Madi

    Published 2025-01-01
    “…Empirical evaluations demonstrate the efficiency of the method, demonstrating significant improvements in computational efficiency and optimization outcomes.…”
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  8. 948

    Ring-Based Planning Approach for Intelligent Reflecting Surface in 6G Networks by Fan-Hsun Tseng, Hao-Kai Hong, Chi-Yuan Chen, Hsin-Hung Cho

    Published 2025-01-01
    “…The orientation of the deployed IRS and the deployment of multiple IRSs and macrocells are missed but challenging and vital to an ultra-dense network for 6G. …”
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  9. 949

    PROBABILISTIC PROPERTIES OF THE INITIAL VALUES OF WEIGHTING FACTORS IN SYNCHRONIZED ARTIFICIAL NEURAL by V. F. Golikov, N. V. Brich

    Published 2015-05-01
    “…Equal probability of initial weight vestors motion directions is great advantage. On this base authors suppose new line of research conserned with improvement of network architecture and correction algorithm.…”
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  10. 950
  11. 951

    Indoors Smartphone Positioning Enhancement Using Wi-Fi and Magnetometer by Runahi F. Qadir, Halgurd S. Maghdid

    Published 2023-09-01
    “…However, these technologies during positioning process will faced its own limitations such as: none-line-of-sight signals, multipath signals, and sensor drift or accumulated error. …”
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  12. 952

    Signal Timing Optimization Model for Intersections in Traffic Incidents by Jiawen Wang, Jiayu Hang, Xizhao Zhou

    Published 2020-01-01
    “…The headway of leaving vehicles is assumed to follow the Cowan’s M3 headway distribution, where formulas for queue length can be derived based on gap acceptance theory. …”
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  13. 953

    基于改进遗传算法的齿轮传动动态优化设计研究 by 张柏军

    Published 2013-01-01
    “…Gear optimization is a common mechanical engineering problems.Aiming at the limitations of traditional genetic algorithms,the fitness function is adjusted and the convergence rate is improved.Numerical example shows that the optimization method is effective,practical,designed to make the results more in line with objective reality.…”
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  14. 954

    Apollon Mark: bounce mark visualization system for ball sports judgement using prediction-based preceding mirror control by Himari Tochioka, Tomohiro Sueishi, Masatoshi Ishikawa

    Published 2024-12-01
    “…However, currently, popular VAR systems are based on three-dimensional trajectories and do not take actual ball bounce marks into account, which may lead to misjudgment due to misalignment. …”
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  15. 955

    Reliability Optimization Model of Stop-Skipping Bus Operation with Capacity Constraints by Zhenhua Mou, Hu Zhang, Shidong Liang

    Published 2020-01-01
    “…In a bus line with high passenger demand, the stop-skipping operation can benefit both users and operators as well as improve the service level of bus line, but it usually cannot be effectively adopted by operators because of the unordered operation of buses and the discomfort of waiting passenger at stops. …”
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  16. 956

    Effect of switching from acenocoumarol to phenprocoumon on time in therapeutic range and INR variability: A cohort study. by Jasper H A van Miert, Nic J G M Veeger, Arina J Ten Cate-Hoek, Margriet Piersma-Wichers, Karina Meijer

    Published 2020-01-01
    “…Until then, physicians and patients should decide whether switching is worth the increased risk during the transition phase.…”
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  17. 957

    Research on water body information extraction and monitoring in high water table mining areas based on Google Earth Engine by Anya Zhong, Zhen Wang, Yulong Gen

    Published 2025-04-01
    “…The effectiveness of water body extraction using INDWI was compared with that of Normalized Difference Water Index (NDWI), Enhanced Water Index (EWI), and Modified Normalized Difference Water Index (MNDWI). …”
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  18. 958

    Multimodal prediction of the need of clozapine in treatment resistant schizophrenia; a pilot study in first-episode psychosis by Jonatan M. Panula, Athanasios Gotsopoulos, Jussi Alho, Jaana Suvisaari, Maija Lindgren, Tuula Kieseppä, Tuukka T. Raij

    Published 2024-12-01
    “…As many as one third of the patients diagnosed with schizophrenia do not respond to first-line antipsychotic medication. …”
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  19. 959

    An Ante Hoc Enhancement Method for Image-Based Complex Financial Table Extraction by Weiyu Peng, Xuhui Li

    Published 2025-01-01
    “…In the field of finance, the table is a common form of data organization. Extracting data from these tables in large quantities is a fundamental and important task for researchers. …”
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  20. 960

    Traffic and Obstacle-Aware UAV Positioning in Urban Environments Using Reinforcement Learning by Kamran Shafafi, Manuel Ricardo, Rui Campos

    Published 2024-01-01
    “…RLTOPA determines the optimal position of the UAV by considering the positions of ground users, the coordinates of obstacles, and the traffic demands of users. …”
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