Method for field long-term automatic time-sharing measurement of reflectivity of multiple targets

The invention discloses a method for field long-term automatic time-sharing measurement of reflectivity of multiple targets, which comprises the following steps: based on a ratio method, controlling a radiance measurement unit to firstly point to a standard reference white board and measure the radiance of the standard reference white board, then sequentially point to the multiple targets to measure the corresponding radiance of the multiple targets, and finally obtaining the reflectivity of the multiple targets. And meanwhile, in order to ensure that the reflectivity error is not too large, the control method for automatically cleaning the standard reference white board is realized. According to the method, the reflectivity of the target can be periodically measured for a long time, manual errors are removed, the measurement efficiency is improved, and the measurement cost is reduced. 本发明公开了一种野外长期自动分时测量多种靶标反射率的方法，基于比值法，控制辐亮度测量单元先指向标准参考白板，测量标准参考白板的辐亮度，再依次指向多种靶标以测量多种靶标相应的辐亮度，最后求得多种靶标的反射率，同时为了保证反射率误差不会过大，实现了自动对