| CO2差分吸收激光雷达探测性能研究 |
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| 引用本文： | 尹世荣,王蔚然,李新山. CO2差分吸收激光雷达探测性能研究[J]. 激光与红外, 2004, 34(1): 21-23 |
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| 作者姓名： | 尹世荣 王蔚然 李新山 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,610054;成都军区空军司令部,四川,成都,610041 |
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| 摘 要： | 针对长程直接探测CO2差分吸收激光雷达，研究了系统的探测性能。分析了影响探测性能的两类主要噪声源：斑纹噪声和探测噪声，得到了探测性能与斑纹噪声和探测噪声之间关系的计算结果。结果表明，近距离测量时，探测性能主要受斑纹噪声的限制，远距离测量时，探测性能主要受探测噪声的限制；如果系统参数选择不当，斑纹噪声将严重制约着系统的探测性能。
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| 关 键 词： | CO2差分吸收激光雷达 探测性能 斑纹噪声 探测噪声 |
| 文章编号： | 1001-5078(2004)01-0021-03 |
Research on Detection Performance of CO2 DIAL |
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| YIN Shi-rong,WANG Wei-ran,LI Xin-shan. Research on Detection Performance of CO2 DIAL[J]. Laser & Infrared, 2004, 34(1): 21-23 |
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| Authors: | YIN Shi-rong WANG Wei-ran LI Xin-shan |
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| Affiliation: | YIN Shi-rong~1,WANG Wei-ran~1,LI Xin-shan~2 |
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| Abstract: | For long-range direct detection CO_2 differential absorption lidar (DIAL),the detection performance is researched.Both speckle noise and detection noise are analyzed,which have important effects on detection performance.Calculation results of dependent relationships between detection performance and speckle and detection noise are obtained.These results show that the detection performance is mainly limited by speckle noise in the case of a nearby target,and it is mainly limited by detection noise for target at long range.If unreasonable system parameters are selected,the detection performance will be severely limited by speckle noise. |
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| Keywords: | CO_2 differential absorption lidar detection performance speckle noise detection noise |
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