摘要
本文介绍了距离选通和同步扫描两种水下激光成像技术发展现状。从理论上计算了同步扫描系统的信号光和后向散射光传回到探测器端的辐照度与衰减长度的定量关系。减小视场角和增大光源到探测器的间隔可提高成像距离。一般水质下成像距离理论值约１２倍衰减长度。
This paper introduces the present development of two types underwater laser imaging system technology about range gating and synchronous scanning. In the theory,we calculate the quantity relationships between attenuation lengths and irradiance of signal light and backscatter light transmiting to the detector in the synchronous scanning system. The imaging distances can be increased by means of decreasing angle of receiver and improving distance from the source to detector. The theory value of the imging distances is about 12 attenuation lengths in ordinary water.
出处
《电子器件》
EI
CAS
1997年第3期47-51,共5页
Chinese Journal of Electron Devices
