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发明公开
CN105928902A 高光谱分辨率整层大气透过率测量方法 无效 - 驳回

高光谱分辨率整层大气透过率测量方法
摘要：
本发明公开了高光谱分辨率整层大气透过率测量方法，利用目标跟踪装置获取透过大气层的太阳光或星光作为信号光，利用高度相干性的窄线宽激光器作为本振激光，将透过大气层的信号光和本振激光在外差探测器中进行光学混频，并依次经过中频滤波器和平方律探测器后，再次送入到带通滤波器中滤除噪声，并最终被计算机采集得到透过大气层的信号光和本振激光合束产生的外差信号，对该外差信号进行处理，获取透过大气层的微弱信号光的高分辨率光谱，用于整层大气透过率的实时测量，可用于大气光学、气象研究和大气污染监测、探测等领域，可实现快速响应、实时在线测量高光谱分辨率的整层大气透过率。
摘要（英）：

The invention discloses a high-spectrum-resolution total atmospheric spectral transmittance measuring method. The method includes: using a target tracking device for acquiring sunlight or starlight penetrating the atmosphere as signal light, taking a high-coherence narrow linewidth laser as local oscillation laser, subjecting the signal light penetrating the atmosphere and the local oscillation laser to optical mixing in a heterodyne detector prior to passing through an intermediate-frequency filter and a square-law detector, sending to a band-pass filter to remove noise, enabling a computer to collect for obtaining a heterodyne signal generated by combination of the signal light penetrating the atmosphere and the local oscillation laser, and processing the heterodyne signal to obtain a high-resolution spectrum of weak signal light penetrating the atmosphere. The high-spectrum-resolution total atmospheric spectral transmittance measuring method is used for real-time measurement of total atmospheric spectral transmittance and applicable to fields of atmospheric optics, meteorological research, atmospheric pollution monitoring, detection and the like, and quick response and real-time measurement of high-spectrum-resolution total atmospheric spectral transmittance can be realized according to the method.

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