|
|||||
|
|
| 水下激光成像系统探测距离的计算与仿真 | |
| 引用本文： | 王磊,徐智勇,张启衡,王华闯,于学刚,杨建军.水下激光成像系统探测距离的计算与仿真[J].光电工程,2012,39(5):39-44. |
| 作者姓名： | 王磊 徐智勇 张启衡 王华闯 于学刚 杨建军 |
| 作者单位： | 1. 中国科学院光电技术研究所,成都610209;中国科学院研究生院,北京100049 2. 中国科学院光电技术研究所,成都,610209 3. 中国人民解放军93617部队,北京,101400 |
| 基金项目： | 中科院科技创新基金资助项目( A08K001) |
| 摘 要： | 为了估计水下激光成像系统的工作距离,根据水下激光成像系统的成像过程,通过分析目标的辐射特性,水体的衰减特性等各因素,建立了水下激光成像系统的信噪比模型.根据识别目标所需要的信噪比阈值、脉冲激光器等器件的性能指标,推导出水下激光成像系统的工作距离公式,并且完成了系统成像距离的计算与仿真.采用532 nm的Nd∶YAG固体激光器、自组ICCD相机以及基于FPGA技术设计的同步控制电路板,进行了距离选通水下激光成像实验.实验结果表明:理论模型计算的信噪比与实际图像的信噪比平均误差为1.37 dB,证实了该模型的合理性. |
| 关 键 词： | 成像系统 激光器 距离选通 信噪比 |
| 收稿时间： | 2011/11/8 |
Detection Range Simulations of Underwater Laser Imaging System |
|
| WANG Lei , XU Zhi-yong , ZHANG Qi-heng , WANG Hua-chuang , YU Xue-gang , YANG Jian-jun.Detection Range Simulations of Underwater Laser Imaging System[J].Opto-Electronic Engineering,2012,39(5):39-44. | |
| Authors: | WANG Lei XU Zhi-yong ZHANG Qi-heng WANG Hua-chuang YU Xue-gang YANG Jian-jun |
| Affiliation: | 1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China; 2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China; 3. The Chinese People’s Liberation Army 93617 Unit, Beijing 101400, China ) |
| Abstract: | In order to estimate the detection range of underwater laser imaging system, according to the imaging mechanism, the analysis of target radiation is reported, along with the analysis of seawater attenuation and other factors, and then the Signal-to-noise Ratio(SNR) model of the underwater laser imaging system is established. According to thethreshold of SNR for recognizing the target, along with the performance of laser and other devices, formulation of detection range is obtained. Then computation and simulation of detection range is implemented. By adopting a 532nm Nd:YAG laser, self-made ICCD camera and a range-gated sync control board based on FPGA technology, the underwater laser imaging experiment is done. The experimental results, which indicate that the average error of SNR between theoretical model and real image is 1.37dB, show the rationality of the SNR model. |
| Keywords: | imaging systems laser range-gated signal-to-noise ratio |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
