Development of Direction Finding of Man-made Noise Sources
人造噪声源测向的进展
基本信息
- 批准号:07650478
- 负责人:
- 金额:$ 1.41万
- 依托单位:
- 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
- 起止时间:1995 至 1996
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
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.
人为噪声的测向是电磁兼容研究中的一个重要问题,虽然目前已有一些方法,但都存在一些问题,本文提出的方法具有以下优点:(1)它提供了噪声源的快照分布;(2)它是基于对单点多个场分量的测量。计算机模拟表明,利用最大熵概念,我们可以得到左右偏振分量的分布,并且与假定的源的分布符合得很好。最后,我们进行了实验室实验,实验结果与假设的噪声源吻合较好。
项目成果
期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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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- 影响因子:0
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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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- 影响因子:0
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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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HAYAKAWA Masashi其他文献
HAYAKAWA Masashi的其他文献
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ULF 发射在地面电磁环境中的作用
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04650366 - 财政年份:1992
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60580007 - 财政年份:1985
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$ 1.41万 - 项目类别:
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