1) underwater initiative imaging
水下主动成像
1.
To eliminate underwater initiative imaging backward scattering effect,improve underwater imaging distance,expand underwater detecting range,and improve the probability of target detection and identification,a mechanism of gate-ranged synchronization pulse generation based on circular step advance delay is proposed.
为消除水下主动成像背向散射效应的影响,提高水下成像的作用距离,同时扩大成像探测的范围,提高水下目标的探测与识别概率,在研究距离选通水下主动成像探测的基础上,提出了循环步进延时控制距离选通同步脉冲产生机理,使同步选通脉冲循环延迟时间序列与拟探测区域的距离序列相匹配,实现不同距离情况下水体的扫描成像,再通过三维图像生成实现水体的三维成像显示;研究了循环步进延时控制的机理,设计了基于循环步进延时同步控制的距离选通水下微光三维成像装置。
2) underwater imaging
水下成像
1.
Several problems that should be considered for the design of the underwater imaging detection system are analyzed and discussed,including system parameters,optical signal computation model and imaging system performance evaluation model.
考虑发射系统和接受系统间的距离,建立了激光水下光电成像探测系统的一般理论模型;推导了信号辐射、后向散射、前向散射的计算方法;给出了考虑前向散射和背向散射作用下的成像对比度计算方法;最后导出了水下成像系统的作用距离方程。
2.
The technology of laser underwater imaging has obtained some productions in the world, present- synchronous scanning tech- nology and range- gated rechnology are mostly applied now.
激光水下成像技术在国内外已经取得较为完善的成果,目前主要采用距离选通和同步扫描两种方法。
3.
The effect of optical properties of water on the underwater imaging is analyzed based on the theoratical model.
首先对水的光学特性进行介绍 ,然后根据理论模型分析水的光学特性对水下成像的影响 ,最后从水下光照度的角度对水下光学成像的质量和影响因素进行分析。
3) active imaging
主动成像
1.
Signal-to-noise ratio model of laser active imaging system;
激光主动成像系统信噪比模型的研究
2.
Operation range of laser active imaging system computation and simulation;
激光主动成像系统探测距离的计算与仿真
3.
Modeling and theoretical analysis for improving laser polarized active imaging;
一种改进激光偏振主动成像的建模及理论分析
4) underwater acoustic imaging
水下声成像
1.
The study of underwater acoustic imaging has great significance for design and realization of imaging sonar.
水下声成像技术在水下探测尤其是海底测绘、海底物体探测与识别的应用中发挥着重要作用，具有广泛的应用前景。
补充资料：地下水水资源评价(见水资源评价)
地下水水资源评价(见水资源评价)
d ixiashui shuiziyuan Ping】ia地下水水资源评价见水资源评价。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条