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The Design and Research of Communication Shielding Instrument Based on Array Antenna

Author: XieLei
Tutor: JiAiGuo
School: Qingdao Technological University
Course: Communication and Information System
Keywords: Shielded instrument Array antenna FPGA Beampatterns MUSIC algorithm
CLC: TN820
Type: Master's thesis
Year: 2011
Downloads: 13
Quote: 0
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Abstract


With the development of the communications industry , the mobile phone has brought convenience to people's lives while also produces some of the problems can not be ignored , and the extent and severity of the harm has aroused great attention , and thus the mobile phone signal shielding device has been widely application . Existing shielding device by device performance and work restrictions , there is a series of high -power , radiation hazards , shielded imprecise . Array antenna application background , to carry out the development work of the shielded instrument based the shielded instrument array antenna technology research idea , program , for defects of the existing shielded instrument , implemented in FPGA platforms beamforming and orientation estimation . The basic idea is to take full advantage of the FPGA parallel processing capabilities , The main platform choose to the Xilinx company 's XC3S1400AN for building high - performance multi-core signal processing system . Application Altium Designer development environment for the overall design of the hardware system , research and selection of the major functional modules , build communication shielded instrument hardware platform . Array antenna as the transmitter , the application antenna pattern analysis method , considering the array antenna array factor and element factor , equally spaced array array graphics viewer software design and implementation , consider Xiekunnuofu binomial distribution of the element gain in accordance with the value of the binomial distribution , to achieve better results in the array graphics viewer software . Use of the array antenna airspace filtering DOA estimation process to determine the relative orientation of the mobile station is trying to communicate , and the MUSIC algorithm simulation study , the results show that , in the the narrowband array element domain and narrowband beamspace conditions the algorithm is effective . This paper analyzes the key technology in the development of the simulation results of the algorithm are given to achieve the target orientation estimation and digital beamforming directional beam shielding effect .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > General issues
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