非封闭舱室内电场统计均匀测试方法

裴朝; 苏东林; 石国昌; 廖意

doi:10.13700/j.bh.1001-5965.2018.0081

非封闭舱室内电场统计均匀测试方法

doi: 10.13700/j.bh.1001-5965.2018.0081

裴朝¹,
苏东林¹,
石国昌²,
廖意^2, ,

1.
北京航空航天大学电子信息工程学院, 北京 100083
2.
上海无线电设备研究所, 上海 200090

基金项目:

国家自然科学基金 61571027

国家自然科学基金 61521091

国家自然科学基金 61427803

上海市青年科技启明星计划 17QB1404100

详细信息

作者简介:
裴朝  男, 博士研究生, 助理研究员。主要研究方向:电磁兼容、可靠性

苏东林  女, 博士, 教授。主要研究方向:电磁兼容

石国昌  男, 硕士, 工程师。主要研究方向:HIRF效应仿真与试验

廖意  男, 博士, 高级工程师。主要研究方向:电磁环境效应

通讯作者:
廖意, E-mail:lycle21@buaa.edu.cn

中图分类号: V216;TN99
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- 文章访问数: 718
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- 被引次数: 0
出版历程
- 收稿日期: 2018-02-08
- 录用日期: 2018-05-04
- 网络出版日期: 2018-11-20

Testing methods of statistical uniform electric field in non-enclosed aircraft cabin

1.
School of Electronic Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
2.
Shanghai Radio Equipment Research Institute, Shanghai 200090, China

Funds:

National Natural Science Foundation of China 61571027

National Natural Science Foundation of China 61521091

National Natural Science Foundation of China 61427803

Shanghai Rising-Star Program 17QB1404100

More Information

Corresponding author: LIAO Yi, E-mail:lycle21@buaa.edu.cn

摘要

摘要:
低电平扫描场（LLSF）测试是飞机级高强辐射场（HIRF）效应试验的重要内容。分别建立了方形舱室内置模式搅拌叶片的仿真模型和试验系统，验证了外部LLSF照射下非封闭舱室内产生统计均匀特性电场的可行性。以方形舱室和圆柱舱室模型为对象，提出了基于遍历和递归算法的场均匀区域检验方法，获取了模式搅拌工作下的2种非封闭舱室内的有限均匀区域，为实际飞机级LLSF试验过程中接收探头的布置提供重要指导。
- 场均匀性 /
- 模式搅拌器 /
- 非封闭舱室 /
- 低电平扫描场(LLSF) /
- 高强辐射场(HIRF)
Abstract:
Low level swept field (LLSF) testing is an important part of aircraft-level high intensity radiated field (HIRF) effect measurements. The simulation model and experimental systems of LLSF effect for cuboid-shaped cabin with mechanical mode stirrer placed internally were established. Encouraging numerical and experimental results validated the possibility of statistical uniformity characteristic inside the non-enclosed cabin, which is illuminated by LLSF, with the help of mode stirrer. Then, the simulation models of non-closed cuboid-shaped cabin, as well as the cylindrical cabin were considered. The searching and testing method is proposed based on the traversal and recursive algorithm. The frequency-dependent regions of uniform electric field inside cabins were obtained by using the proposed valid test method. The objective is to provide an important guidance for limiting the regions of receiving probes or antennas in practical LLSF measurements.
- field uniformity /
- mode stirrer /
- non-enclosed aircraft cabin /
- low level swept field (LLSF) /
- high intensity radiated field (HIRF)

HTML全文

图 1 直角坐标系中方形舱室与搅拌器位置

Figure 1. Location of cuboid-shaped cabin and stirrer under rectangular coordinate system

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图 2 场均匀性试验布置

Figure 2. Field uniformity test layout

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图 3 方形舱室待测区域场均匀性测试结果

Figure 3. Field uniformity test results in testing region of cuboid-shaped cabin

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图 4 方形舱室圆形开口下待测区域场均匀性测试结果

Figure 4. Field uniformity test results in testing region of cuboid-shaped cabin with circular apertures

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图 5 方形舱室空隙率变大后待测区域场均匀性测试结果

Figure 5. Field uniformity test results in testing region of cuboid-shaped cabin for increased aperture ratio

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图 6 方形舱室内部场均匀性仿真模型

Figure 6. Simulation model for field uniformity in cuboid-shaped cabin

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图 7 仿真与测试总数据集场均匀性标准偏差对比

Figure 7. Comparison of simulated and test standard deviations of field uniformity for all vectors

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图 8 圆柱舱室内部场均匀性仿真模型

Figure 8. Simulation model for field uniformity in cylindrical cabin

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图 9 圆柱舱室照射下的场均匀性标准偏差

Figure 9. Standard deviations of field uniformity in cylindrical cabin illumination

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图 10 不同孔隙率下x分量电场的标准偏差

Figure 10. Standard deviations for x vector electric field with different aperture ratios

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图 11 均匀区域体积随频率变化

Figure 11. Variation of uniform region volume with frequency

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图 12 遍历查找检验方法

Figure 12. Schematic diagram of traversal searching and testing method

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图 13 方形舱室区域A′的场均匀性标准偏差

Figure 13. Standard deviations of field uniformity in region A′of cuboid-shaped cabin

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图 14 圆柱舱室区域B′的场均匀性标准偏差

Figure 14. Standard deviations of field uniformity in region B′of cylindrical cabin

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表 1 场均匀性要求的标准偏差^[10]

Table 1. Allowable standard deviation for field uniformity ^[10]

频率/MHz 场均匀性标准偏差

100~400 由100MHz频率的4dB线性递减至400MHz的3dB

400以上 3dB

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