Impact of echo broadening effect on active range-gated imaging  

作　　者：王新伟 周燕 刘育梁 

机构地区：[1]Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2012年第10期32-34,共3页中国光学快报（英文版）

摘　　要：Analytical formulas and experimental proof of the echo broadening effect in active range-gated imaging, including atmospheric interference, currently exist. We investigate the impact of this effect on target detection. Our research demonstrates that the echo broadening effect affects the energy profile of the depth of view and collects only part of the signals of targets in head and tail zones. Under bad weather conditions, the effect weakens the signal-to-noise ratio （SNR） of images, especially in cases with large laser pulse width. Fortunately, by modifying the laser pulse width, the effect can be controlled. These results are valuable to the applications of active range-gated imaging.Analytical formulas and experimental proof of the echo broadening effect in active range-gated imaging, including atmospheric interference, currently exist. We investigate the impact of this effect on target detection. Our research demonstrates that the echo broadening effect affects the energy profile of the depth of view and collects only part of the signals of targets in head and tail zones. Under bad weather conditions, the effect weakens the signal-to-noise ratio （SNR） of images, especially in cases with large laser pulse width. Fortunately, by modifying the laser pulse width, the effect can be controlled. These results are valuable to the applications of active range-gated imaging.

关 键 词：OPTICS PHYSICS 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术] TN911.4[自动化与计算机技术—计算机科学与技术]