目标与背景红外数据库系统实现及目标表面温度工程建模研究

发布时间：2018-08-29 13:34

【摘要】：目标与背景红外数据库系统实现及目标表面温度工程建模研究,能够为红外动态战场仿真训练平台提供数据保障与支持,能够为评估和仿真提供直接输入,能够极大地提高目标识别的成功率和速度。本文利用数据库、信息工程、软件工程的原理和方法设计开发了该数据库系统,包括数据库及其管理系统和应用系统。同时,本文对平板表面温度工程建模开展了研究。主要内容有以下几方面:(1)以课题组所获得的红外特性成果及相关资料为基础,设计、建立并部分完善了以实验数据库、模拟数据库、目标特性库、地物特性库、气象参数库、太阳辐照库、大气辐射传输库、材料信息库、用户信息库等为主体的目标与背景红外数据库。同时,以该数据库为后台,设计并开发了包含数据操作和系统保护的管理系统。(2)所开发的应用系统包含图像处理、MODTRAN大气辐射传输计算及太阳辐射计算等模块。图像处理能对多种格式红外图像进行几何变换、图像拼接、图像标准化等操作。(3)综合考虑几乎所有的内部因素、环境条件及背景差异等,建立了平板温度的热模型,并通过数学推导及取值分析进行简化。采用控制变量法分析讨论了太阳辐射、平板材料参数及目标内部条件等因素对平板表面温度变化速率的影响。拟合了南京地区气温、相对湿度及风速的日变化表达式。建立并拟合了平板表面瞬时温度的半经验表达式。利用实测与模拟数据校验了该模型的可靠性,并利用该模型求解了装甲车整车表面温度分布。
[Abstract]:The realization of target and background infrared database system and the research of target surface temperature engineering modeling can provide data guarantee and support for infrared dynamic battlefield simulation training platform, and can provide direct input for evaluation and simulation. It can greatly improve the success rate and speed of target recognition. Based on the principles and methods of database, information engineering and software engineering, this paper designs and develops the database system, including the database, its management system and application system. At the same time, the temperature engineering modeling of flat surface is studied in this paper. The main contents are as follows: (1) based on the infrared characteristic results and related data obtained by the research group, the experimental database, the simulation database, the target characteristic database, the ground feature database, the meteorological parameter database are designed, established and partially perfected. The object and background infrared database of solar radiation database, atmospheric radiation transfer database, material information database, user information database, etc. At the same time, based on the database, a management system including data operation and system protection is designed and developed. (2) the application system includes image processing, MODTRAN atmospheric radiation transfer calculation and solar radiation calculation. Image processing can perform geometric transformation, image stitching, image standardization and so on. (3) considering almost all internal factors, environmental conditions and background differences, a thermal model of plate temperature is established. It is simplified by mathematical derivation and value analysis. The effects of solar radiation, plate material parameters and target internal conditions on the surface temperature change rate of the plate are analyzed by using the control variable method. The diurnal variation expressions of air temperature, relative humidity and wind speed in Nanjing are fitted. The semi-empirical expression of the instantaneous temperature of the plate surface is established and fitted. The reliability of the model is verified by the measured and simulated data, and the surface temperature distribution of armored vehicle is solved by the model.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP311.13;E91

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