Development of Direction Finding of Man-made Noise Sources
Development of Direction Finding of Man-made Noise Sources
批准号:
07650478
负责人:
HAYAKAWA Masashi
金额:
$1.41万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
1995
资助国家:
日本
项目状态:
已结题
起止时间:
1995 至 1996
中文摘要
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英文摘要
Direction finding of man made noises is of essential uimportance in EMC.Though some mthods have so far beenproposed, there are problems with them.The method we proposed, has the following advantages ; (1) it provides us withthe snapshot distribution of noise sources, and (2) it is based on the measurement of multiple field components ata single point. Computer simulations have shown that we can have the distributions of right- and left-handed polarized components by using the maximum entropy concept, and the agreement with the assumed source was found to be good. Further the effect of noise on the image reconstruction was also estimated.Finally we carried out the laboratory experiment and we obtained a good agreement with the assumed source.
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N.Suzuki, M.Hayakawa, Y.Maeda: "A proposal on the direction finding for man-made noise sources : Simulation experiments" Proc.1996 Int'l Symp.on Antenna & Propagation. Vol.3. 729-732 (1996)
N.Suzuki、M.Hayakawa、Y.Maeda:“关于人造噪声源测向的建议:模拟实验”Proc.1996 Intl Symp.on Antenna
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M.Hirari, M.Hayakawa: "A neural network for the DOA of vlf/elf radio waves" ibid. E79-B. 1598-1605 (1996)
M.Hirari、M.Hayakawa:“用于 vlf/elf 无线电波 DOA 的神经网络”同上。
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N.suzuki,M.Hayakawa,Y.Maeda: "A Proposal on the direction finding for man-made radio noise sources ; Simulation Experiments" Iroc.1996 Int'l Symp.on Antennas d Propagation (chiba,Japn). vol.3. 729-732 (1996)
N.suzuki、M.Hayakawa、Y.Maeda:“关于人造无线电噪声源测向的建议;模拟实验”Iroc.1996 Intl Symp.on Antennas d Propagation(日本千叶)。
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M.Hirari,M.Hayakawa: "A neural network for the DOA of VLF/ELF radio waves" Trans.Inst.Electr.Inform.Comm.Egrs.japan. E79-B. 1598-1605 (1996)
M.Hirari、M.Hayakawa:“用于 VLF/ELF 无线电波 DOA 的神经网络” Trans.Inst.Electr.Inform.Comm.Egrs.japan。
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M.Hirari,M.Hayakawa: "Bayesian reyulaization approach to ill-posed problems with application to the direction fihding of VLF/ELF radio waves" Trans.Inst.Electr.Inform.Comm.Engrs.Japan. E79-B. 63-69 (1995)
M.Hirari、M.Hayakawa:“贝叶斯再化方法应用于 VLF/ELF 无线电波方向定位中的不适定问题” Trans.Inst.Electr.Inform.Comm.Engrs.Japan。
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共 10 条
Study on quantum-mechanical dynamics of gauge theories
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Cloud-to-Ionosphere Discharge, Electromagnetic Radiation and Their Effect on Power Transmission.
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Study of Plasma Turbulence by Means of Bispectrum Anaylyses
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财政年份:1992
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依托单位:
Development of Direction Finding System for Plasma Waves
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财政年份:1990
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Study of Nonlinear Wave-wave Interaction in the Ionospheric Plasma
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财政年份:1985
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负责人:HAYAKAWA Masashi
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依托单位:
海外基金