Location refinement and power coverage analysis based on distributed antenna

Zhao, Xiaonan; Hou, Chunping; Wang, Qing; Chen, Hua; Pu, Liangzhou

doi:10.1007/s12209-016-2521-5

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…It is necessary to systematically study its transmission structure, vibration characteristics, and process optimization design, and carry out vibration tests, providing important guidance and practical value for engineering applications. 10–13…”

Section: Introductionmentioning

confidence: 99%

Analysis and experimental study on vibration characteristics of the RV reducer

Wang

Fang

et al. 2023

Advances in Mechanical Engineering

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RV reducers are commonly employed in precision transmissions, such as robot joints, owing to their multi-tooth contact characteristics, strong impact resistance, and low backlash. A finite element modal analysis of the RV reducer was conducted in this study to reduce the influence of RV vibration on the transmission performance and improve its transmission characteristics. The transmission characteristics are analyzed according to the transmission characteristics and principles. Combined with the theoretical basis of modal analysis, the finite element analysis method was used to analyze the main transmission components, and the natural frequencies and vibration modes of each main component were obtained. A modal analysis of the input shaft and cycloidal gear was performed, and the natural frequencies and vibration modes were obtained. The vibration patterns of the RV reducer, as well as the input shaft and cycloidal gear, were analyzed comprehensively. The distribution of each order frequency and deformation of the components can be determined by analyzing the frequency and array distribution of the components. An RV reducer transmission performance test platform was established to verify the accuracy of the simulation. Vibration signals under three different working conditions were collected, and the accuracy of the simulation was verified by analyzing the frequency signal, which provided important guidance for the design and optimization of the subsequent RV reducer.

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Section: Introductionmentioning

confidence: 99%

Analysis and experimental study on vibration characteristics of the RV reducer

Wang

Fang

et al. 2023

Advances in Mechanical Engineering

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“…In recent years, a variety of MIMO scenarios have been measured abroad [4][5][6], a large number of channel parameters have been obtained, and the corresponding channel models have been established. Domestic MIMO wireless channel measurements have also been performed [7][8][9]. The two outdoor channels are measured in different frequency bands, and the corresponding large-scale channel parameters have been obtained.…”

Section: Introductionmentioning

confidence: 99%

Analysis of a distributed MIMO channel capacity under a special scenario

Zhao

Jia

Zhang

et al. 2019

J Wireless Com Network

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A distributed antenna system enhances the coverage performance of a system by distributing the antennas geographically, as well as by improving the diversity gain and capacity performance. The channel impulse response matrix of a distributed MIMO system in an airplane cabin environment is measured by a self-built channel measurement platform. The transmitting antennas are distributed, and the receiving antennas are placed centrally. The data analysis shows that the distributed MIMO system can significantly increase the system's channel capacity. The system's capacity is also closely related to whether the antennas are evenly placed. When the antennas are evenly placed, the capacity is increased and the distribution is more uniform.

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Location refinement and power coverage analysis based on distributed antenna

Cited by 2 publications

References 4 publications

Analysis and experimental study on vibration characteristics of the RV reducer

Analysis and experimental study on vibration characteristics of the RV reducer

Analysis of a distributed MIMO channel capacity under a special scenario

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