海洋激光雷达水下目标探测的蒙特卡罗仿真分析

来源 :第四届全国信息光学与光子器件学术会议 | 被引量 : 0次 | 上传用户:yanchao0424
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  海洋激光雷达在探测水下目标时,其探测深度会受到波动水面的影响。对于光子在目标平面上的空间分布,已经成为研究的热点。而已有工作多集中在光子径向分布半径较小的情形,对于光子在目标平面大范围的扩散情形研究较少。基于蒙特卡罗方法,通过对比舍选抽样法和变换抽样法,光子径向分布半径较大的情形得以分析。结果显示,对于相同半径,光子径向相对能量分布与风速满足一定的规律。这说明,由于风速影响所产生的随机性并不是完全随机,也有一定的规律性。同时,舍选抽样法和变换抽样法的对比显示,变换抽样法作为一种近似,其结果没有舍选抽样法精确。
其他文献
Thermoelectric(TE) device has attracted great interests as a green technology because of its ability to directly covert thermal energy to electric energy without any harmful substance.
Aluminum doped Zinc Oxide is a transparent conductive oxide and is largely being used as a window layer in CIS/CIGS solar cells.It also finds its applicability in many micro-electronic devices because
To dope tungsten into zinc oxide (ZnO∶W,WZO) and indium oxide (In2O3∶W,IWO) is quite attractive because there is a valence difference of four between W6+ and Zn2+ and three between W6+ and In3+,respec
Hydrogenated microcrystalline silicon (c-Si∶H) films,which are widely employed for thin films silicon tandem solar cells,are commonly deposited by plasma chemical vapor deposition (CVD).
We report on an a-Si∶H/a-SiGe∶H/μc-Si∶H triple-junction p-i-n solar cells deposited on large-area glass substrates.Microcrystalline silicon (μc-Si∶H) bottom cells were deposited with a VHF-PECVD depos
Deposition of hydrogenated amorphous silicon (a-Si∶H) films at a low substrate temperature Ts of 180℃ is important to realize a-Si∶H PIN solar cells of a high efficiency.
Tungsten-doped zinc oxide (ZnO∶W,i.e.WZO) and tungsten-doped indium oxide (In2O3∶W,i.e.IWO) thin films are promising transparent conductive oxide (TCO) layers for thin film solar cells.
Hydrogen was produced by the direct dissociation of water vapor,i.e.,splitting water molecules by the electrons in a water plasma,at low pressure (<10~50 Torr) using a microwave plasma discharge.
We deposited various CIGS samples by using in-line sputter to confirm the mass production ability of the sputtering equipments.
Ever growing demand for lighter,cheaper and safer Li-ion batteries with high energy density that can power electric vehicles and portable electronics stimulates researchers to discover new anode mater