Results 1 to 10 of about 40,023 (305)
Adaptive Antenna Capabilities In GSM Systems Performance Improvement [PDF]
Engineering and Technology Journal, 2015 In this work, the major impairment regarding the coverage and capacity of GSM system has been explained. This paper presents the adaptive antenna array systems as a promise technology that have the ability to overcome the mobile communication performance
Adheed Hasan Sallomi +1 more
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IEEE Access, 2022 Conformal array antenna is one of the important development directions of airborne radar in the future. Its advantages include aerodynamic design, larger effective aperture and minimal payload weight etc.
Yuanyi Xiong +2 more
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An Adaptive Hybrid Beamforming Approach for 5G-MIMO mmWave Wireless Cellular Networks
IEEE Access, 2021 Hardware complexity reduction is a key concept towards the design and implementation of next generation broadband wireless networks. To this end, the goal of the study presented in this paper is to evaluate the performance of an adaptive hybrid analog ...
Spyros Lavdas +4 more
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Beamforming with 1 × N Conformal Arrays
Sensors, 2022 The rapid growth of wireless spectrum access through cellular and IoT devices, for example, requires antennas with more capabilities such as being conformal and self-adapting beamforming.
Irfan Ullah +4 more
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An Analog Open-Loop Adaptive-Array Antenna System [PDF]
IEEE Transactions on Aerospace and Electronic Systems, 1983 A new open-loop adaptive-array system with excellent transient behavior is presented. The system is constructed of analog circuits and determines complex weights without using the feedback of the array output. The performance attainable with the system is described in detail.
Ogawa, Yasutaka +2 more
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UTHM water quality classification based on sub index [PDF]
, 2020 River or stream at their source is unpolluted, but as water flow downstream, the river or lake is receiving point and non-point pollutant source. Ammoniacal nitrogen (NH3- N) and suspended solids (SS) strongly influences the dynamics of the dissolved ...
Johari, A. H. +2 more
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The Effect of Mutual Coupling on the Performance of GNSS Antenna Arrays
IEEE Access, 2020 Serious mutual coupling effect must be taken into account for the miniaturized adaptive anti-jamming antenna arrays in global navigation satellite system (GNSS) receivers.
Xiaojian Wang +5 more
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Optical Adaptive Antenna Array for Multiuser Mobile Optical Communication
IEEE Access, 2019 In this paper, an optical adaptive antenna array system for multi-user optical mobile communication is studied. A coherent signal source is embedded in a spherical optical phased cell array with an external spherical lens system.
Haibo Wang +3 more
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Downlink calibration requirements for the TSUNAMI (II) adaptive antenna testbed [PDF]
, 1998 The TSUNAMI (II) project is an investigation into the use of adaptive antenna technology. The field trial system has been developed for the purposes of investigating the feasibility of implementing such a system using a GSM-1800 base station system.
Beach, MA, Simmonds, CM
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Theory and key technologies research on adaptive multi-antenna in coal mine tunnel
Gong-kuang zidonghua, 2017 Characteristics of wireless communication environment and multi-antenna radiation in coal mine tunnel were analyzed. An adaptive multi-antenna technology was proposed on basis of tunnel waveguide theory and adaptive array antenna technology.
C, ZHANG Yi, XU Zhao, GAO Min
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