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大气水汽探测拉曼激光雷达系统仿真设计

Keywords: 水汽测量,拉曼散射,激光雷达,信噪比

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Abstract:

设计了发射波长为532nm测量大气水汽的拉曼激光雷达系统.结合系统误差理论分析,验证系统夜间测量水汽的高效性和白天测量水汽的可行性.通过对比不同发射波长的拉曼激光雷达系统的回波信号与信噪比,得出最优系统参数能够实现白天0~4km、夜间0~9km的探测,该系统探测性能优于266nm或355nm的测量系统,特别是夜间探测大气水汽更为高效.为实现单波长测量大气参数(温度、气溶胶和水汽)提供了一个可行性设计.

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