The IR radiation of the warship target and the sea-sky background, the diminish of the air, and the noise of the detector of IR image.
仿真要素包括舰船和海天背景的红外辐射、大气衰减以及红外成像探测器的噪声影响。
Theoretical methods of improving the performance of dim-point target recognition under sea and sky background;
改善海空背景下红外弱点目标识别性能的理论方法探讨
Recognition algorithm for sea background infrared targets
海面背景红外目标的识别算法
The target s SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.
海面背景下海面及连绵起伏的波浪反光使图像的信噪比和对比度都较低,而且舰船目标像素较少。
In this paper,the thermal model of a small target in view of the radiation model of sea background and the atmospheric absorption model of infrared radiation is established.
本文在建立弱小目标热模型的基础上,考虑了海面背景的辐射模型以及红外辐射的大气吸收模型,进而计算出弱小目标的红外辐射及大气衰减量,最终可获得经过大气衰减的弱小目标红外仿真图像,取得了较好的效果。
further analysed the correlations between the two former and corresponding characters of height and Sea temperature.
本文利用中国东部地区355站的逐日降水资料,以及NCEP/NCAR提供月平均海温和高度场资料,采用扩展EOF、旋转EOF、墨西哥帽小波分析、合成分析、滑动-t检验、低通滤波等方法研究了我国东部夏季雨带推进过程和各区域夏季降水季节演变的年际、年代际变化特征及其两者的关系,在此基础上进一步分析了雨带推进强弱的海气背景特征,得出的主要结论如下: 1、空间均一化降水指数EEOF展开的第一特征向量反映了中国东部夏季雨带推进的多年平均状态,对应的时间系数表示雨带推进强度的变化。
Research on Tracking Approach to Weak Small Target of Sea-sky Background;
海天背景下弱小目标实时捕获跟踪研究
Research on Detection of Small Weak Infrared Target Based on Multi-feature Fusion in Background of Sea-sky;
基于多特征融合的海天背景红外弱小目标检测方法研究
She was looking at the sea, and her form was outlined on the blue ocean and sky.
她凝望着大海，背景是蓝色的海与天空。
IR Target Detection & Tracking Algorithm Based on Sea-sky Background
海天复杂背景下红外目标的检测跟踪算法
Application on Climate Background Analysis for Weather Forecasting of Cauliflower Festival in Shanghai Fengxian
气候背景分析在上海奉贤菜花节天气预测中的应用
Against the consistent background of the cove shore, the foreground shows us holding hands with children who walk in taller and taller shoes.
照片的背景是经久不变的海滨,但前景中与我们手牵手的孩子却在一天天地长高长大了。
Do you want to have Tian'anmen in the back grou -nd?
要用天安门作背景吗
Research on the Educational and Professional Background of the Presidents of Colleges and Universities in Shanghai
上海本科院校校长的教育背景和职业背景分析
Redeveloping regional knowledge in the context of globalization--From the novel The Everlasting Regret and the “new world” of Shikumen in Shanghai;
全球化背景下的地域性知识重建——从小说《长恨歌》和上海石库门“新天地”谈起
Yes, we did have a diverse student body almost 40% of which was made up of international students.
的确，学生背景各异,40％来自海外。
The beach is beautiful and the background scenery is fascinating.
海滩美丽如画，背景风光非常迷人。
Superposing and Display of Radar Background Information in Electronic Sea Chart Navigation System;
雷达背景信息与电子海图的叠加显示
Study of Signal Detection in the Background of Reverberation in Shallow Water;
浅海混响背景下的信号检测方法研究
Research on Target Recognition Method for Typical Land and Sea Backgroud;
典型地/海背景下目标识别方法研究
Russian Emigres in Shanghai Against Political Changes (1945-1950);
政治大变动背景下的上海俄侨（1945-1950）
Research on the Customs Clearance Reforms under the Background of Regional Economy;
区域经济背景下的海关通关改革研究
The Historical and Cultural Background of New Verse in Hainan and Their Course of Development;
海南新诗的历史文化背景及发展线索
The Background and Reason of Novels of Shanghai School with Blending Highbrow Novel and Popular Novel as One Unit;
海派小说雅俗互动态势的背景与成因