| 差分吸收法测量大气压强的误差研究 |
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| 引用本文： | 朱世德 向安平. 差分吸收法测量大气压强的误差研究[J]. 应用光学, 1995, 16(1): 53-57 |
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| 作者姓名： | 朱世德 向安平 |
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| 作者单位： | 成都气象学院 |
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| 摘 要： | 用级数近似Ｖｏｉｇｔ函数，导出了水平和垂路径吸收系数随压强变化的解析式。分析用数值模拟差分吸收法测量大气压强时激光频移和带宽的影响，计算表明前者是测压误差的主要来源之一。
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| 关 键 词： | 差分吸收 压强误差 大气压强 测量 激光雷达 |
THE STUDIES OF THE ERRORS FOR THE MEASUREMENTS OF THE PRESSURE WITH A DIFFERENTIAL ABSORPTION METHOD |
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| Zhu Shide, Xiang Anping, Ren Ji. THE STUDIES OF THE ERRORS FOR THE MEASUREMENTS OF THE PRESSURE WITH A DIFFERENTIAL ABSORPTION METHOD[J]. Journal of Applied Optics, 1995, 16(1): 53-57 |
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| Authors: | Zhu Shide Xiang Anping Ren Ji |
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| Abstract: | The analytic formulas for variations of horizontal and vertical path absorption coefficients with pressure are derived by a power series expansion. Effects of laser baridwidths,fretluenqy shifts in trough position with altitude, and temperature errors on atmospheric pressure measurement accuracy are simulated numerically. The numerical calculations show that laser frequency shift is one of the main error sources in the pressure measurement. |
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| Keywords: | differential absorption absorption coefficient error of pressure bandwidth frequency shift |
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