Showing 1,821 - 1,840 results of 29,875 for search '"communications"', query time: 0.08s Refine Results
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    Multi-antenna diversity receiving scheme for mobile communication system in high-speed railway by Wan-tuan LUO, ANGXu-ming F, Meng CHENG, Ya-jun ZHAO

    Published 2014-06-01
    “…Under the signal model of differential modulation and demodulation, two multi-antenna diversity receptions (linear combiner and statistic combiner) were proposed, and then the effective diversity reception scheme of train-to-ground wireless broadband communication for high-speed railway scenarios was concluded. …”
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  3. 1823
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    BeiDou satellites cross-regional communication path assignment model and resource management by Sheng Liu, Di Wu, Lanyong Zhang

    Published 2021-07-01
    “…Time division inter-satellite communication and ranging link assignment of BeiDou satellites have made important progress; however, there is still the unsolved issue of integrated communication between ground gateway, aircraft, or even ship, and the BeiDou satellites. …”
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    DropBlock based bimodal hybrid neural network for wireless communication modulation recognition by Yan GAO, Jian SHI, Shengyu MA, Bolin MA, Guangxue YUE

    Published 2022-05-01
    “…As an intermediate step of signal detection and demodulation, automatic modulation recognition played a momentous role in wireless communication system.Aiming at the low recognition accuracy of existing automatic modulation recognition methods, a bimodal hybrid neural network (BHNN) was proposed, which utilized complementary gain information contained in multiple modes to enrich feature dimensions.The improved residual network was connected in parallel with the bidirectional gated loop unit to construct a bimodal hybrid neural network model, and the spatial and temporal features of the signal were extracted respectively.The DropBlock regularization algorithm was introduced to effectively suppress the influence of over fitting, gradient disappearance and gradient explosion on the recognition accuracy in the process of network training.Using bimodal data input, the spatial and temporal characteristics of signals were fully utilized, and the network depth was reduced through parallel connection.The model convergence was accelerated, and the recognition accuracy of modulated signals was improved.In order to verify the effectiveness of the model, two public datasets were used to simulate the model.The results show that BHNN has high recognition accuracy and strong stability on the two datasets, and the recognition accuracy can reach 89% and 93.63% respectively under high signal-to-noise ratio.…”
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  8. 1828
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    Cultural barriers to intercultural/ interracial communication among black and white South African women by Lynn Parry

    Published 2022-11-01
    “…These Include language, nonverbal communication, world view, thought pat terns and stereotypes. …”
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    Compressive narrowband interference detection and parameter estimation in direct sequence spread spectrum communication by Zengkai Shi, Yongshun Zhang, Zhaoyong Qian, Xiaoshuang Sun, Xiangtai Ma

    Published 2022-02-01
    “…Abstract The Shannon‐Nyquist sampling theorem that is based on narrowband interference (NBI) detection and parameter estimation methods in direct sequence spread spectrum (DSSS) communication is limited by the high sampling rate. Compressive sensing (CS) is adopted to address the problem. …”
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    Federal Deep Learning Approach of Intrusion Detection System for In-Vehicle Communication Network Security by In-Seop Na, Anandakumar Haldorai, Nithesh Naik

    Published 2025-01-01
    “…In order to stay current with technology, in-vehicle communication has been enhanced daily. Control area network (CAN) is widely adopted due to the exceptional efficiency and reliability. …”
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    A new miniaturized multi-band transparent antenna for V2X communication by Ourahou Omar, Belahrach Hassan, Ghammaz Abdelilah

    Published 2024-01-01
    “…The suggested design is designed to cover vehicular communication standards such as DSRC/IEEE 802.11p at 5.9 GHz and cellular V2X (C-V2X) bands. …”
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