| 3 mm与8 mm辐射计探测特性的分析 |
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| 引用本文： | 王贺涛,李静.3 mm与8 mm辐射计探测特性的分析[J].国外电子测量技术,2017,36(11):48-51. |
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| 作者姓名： | 王贺涛 李静 |
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| 作者单位： | 西安工业大学电子信息工程学院 西安 710021,西安工业大学电子信息工程学院 西安 710021 |
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| 摘 要： | 为了测试毫米波探测器在实际工作状态中的性能和分析其对目标输出信号的特性，研究了毫米波辐射计的工作原理及输出信号表达式，并推导建立了探测器输出信号的数学理论模型。通过在野外进行模拟实验，获取半实物仿真的数据，研究辐射计输出信号的特性。不考虑大气损耗及天线旁瓣的作用，推导出3 mm和8 mm辐射计探测水泥路面时的天线温度对比度以及最大探测距离，并通过得到的实验数据分析对比两者的性能，为辐射计的选型提供依据。
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| 关 键 词： | 无源探测 天线温度对比度 最大探测距离 |
Analysis of 3 mm and 8 mm radiometer detection characteristics |
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| Wang Hetao and Li Jing.Analysis of 3 mm and 8 mm radiometer detection characteristics[J].Foreign Electronic Measurement Technology,2017,36(11):48-51. |
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| Authors: | Wang Hetao and Li Jing |
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| Abstract: | In order to test the performance of millimeter wave detector in the actual working status and analysis of it on the target characteristics of the output signal, this paper studies the working principle of millimeter wave radiometer and output signal expression.The characteristics of the radiometer output signal are studied by simulating experiment in the field and obtaining the data of semi physical simulation. Without considering atmospheric loss and the effect of antenna sidelobe, 3 mm is deduced and 8 mm radiometer antenna temperature contrast in detecting cement road surface and the maximum detection range, and through the analysis of the experimental data are compared both performance, provide the basis for selection of radiometer. |
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| Keywords: | passive detection contrast of antenna temperature maximum detection distance |
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