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雷达模拟器评估体系研究及其计算机实现

The Study on Radar Simulator Assessment System Realized By Computer

【作者】 刘成勇

【导师】 许昌如;

【作者基本信息】 武汉理工大学 , 交通信息工程及控制, 2002, 硕士

【摘要】 航海模拟器是综合航海技术、计算机应用系统、计算机图形学以及现代控制理论等多门学科的仿真系统,在航海教育和培训的工作中发挥了重要作用。雷达模拟器是航海模拟器中具有代表性的,应用较为普遍。但是在具体的考核实施过程中,由于缺少标准,雷达模拟器教练员的评估带有一定程度的主观性。本文以此为出发点,建立雷达模拟器评估系统,设计出相应的计算机评估软件,依据学生在雷达模拟器训练中的具体操作和操作的准确性,进行定量的评估,并且结合教练员的主观判断,从而使评估尽量达到客观性和可靠性。 雷达模拟器评估系统在对受训者的适任水平和能力进行评估时,能够保证操作标准是明确、有效的,使主观判断保持在最低程度,充分反映出受训者的实际水平,同时为港监发证机关提供参考意见。对雷达模拟器评估系统的研究最终要利用计算机来实现,评估软件能够进行数据的统计分析,将日常工作融入到计算机的管理中去。另一方面,雷达标绘的数学模型可以作为船舶智能避碰系统的组成部分之一,可以为实现“无纸化”的人工标绘打下基础。 论文首先推导出雷达标绘的通用数学模型,并进一步确立系统的评估要素。其次,运用数理统计的方法,利用非参数的分布假设检验建立各个评估要素的误差统计数学模型,划分误差分布区间。第三,根据航运学院雷达/ARPA模拟器训练的应用环境,在C++ Builder软件平台上开发出雷达模拟器评估系统软件,并且经过运行测试,是行之有效的。 论文第一章通过对雷达模拟器训练与评估中的局限性进行分析,结合新的《STCW78/95公约》的标准和要求,并在已有的研究基础之上,确定了本文具体的两项研究内容,即建立雷达模拟器评估系统和设计雷达模拟器评估软件。第二章提出了建立雷达模拟器评估系统的模块化设计思想,系统主要由计算模块、评估模块和数据库管理模块三个模块组成,此外,论述了建立雷达模拟器评估系统的实现方法。第三章主要是在雷达标绘平面直角坐标系中,推导出目标船六要素、“预定点”问题和“时机点”问题的数学解析模型, 武汉理厂大学硕十学位论文并且通过这些数学模型计算出各个评估要素的标准值。第四章主要对大量的原始数据进行统计分析,采用Peanon X‘拟合检验方法,获得了各评估要素的概率分布函数,继而分别确定了各评估要素的误差分布区间,同时也对教练员的主观判断标准进行了阐述。第五章提出了雷达模拟器数据库应用系统,设计出评估系统的模块体系结构,并进一步论述了雷达模拟器数据库管理模块的实现功能,以及评估系统中数据库的设计方法。第六章论述了以Borland C++Builder 5.5软件为平台,开发了基于mE单层结构的雷达模。拟器数据库应用软件,介绍了其主要功能,并对评估软件进行了测试和分析。

【Abstract】 Navigation simulator is a kind of emulational system integrated with many subjects such as navigation techniques, computer application system, computer graphics and modern cybernetics. It has played an important role in the maritime education and training. Radar simulator is typical among the navigation simulators and applied very popularly. However, in the process of assessment the judgment of the simulator coaches is subjective to some extent due to the lack of standards. Based on that, the paper puts forward the radar simulator assessment system (RDSAS) and designs the relevant software. The system can be used in the quantitative assessment according to the operation of students and the veracity of the operation, and also make the assessment objective and reliable considering the subjective estimation of the simulator coaches.RDSAS can ensure that the criteria are specific and effective when assessing the qualification and ability of students, which reduces the subjectivity to the lowest point. The system can fully reflect the actual level of students and bring forward referenced suggestions to the Maritime Safety Administration. RDSAS must be realized by computer. The assessment software can statistically analyze the original data and deal with the routine work. On the other hand, the mathematic models of radar plotting is viewed as one of ingredients of the vessel intelligent preventing-collision system, and the "non-paper plotting" will come true on the basis of the models.First of all, the dissertation reasons out the general mathematic models of radar plotting by means of the plane analytic geometry, and establishes the assessment factors of the system. Secondly, it establishes the statistical mathematic models of the error of each assessment factors by means of non-parameter hypothesis test, and further divides the distributing sections of the error. Finally, on the platform of C++ Builder, the thesis designs the assessment software of radar simulator that is applied effectively according to the training ofradar/ARPA simulator in the Navigation College of WTU.The chapter 1 of the dissertation analyzes the limitation of training and assessment of radar/ARPA simulator, and fixes on two research items, that is to establish the RDSAS and design the relevant software according to the STCW78/95 international convention on basis of existing researches. In the chapter 2, the idea of modularized system design is advanced. The RDSAS is composed of three modules namely the calculating module, the assessing module and the database management module. In addition, it discusses the methods of realizing the RDSAS. In the chapter 3, it mainly deduces the mathematic models of six factors of the target ship and the problems of "given point" and "well-timed point" in the plane orthogonal reference frame. Also it can calculate the standard results of each assessment factor by means of these mathematic models. In the chapter 4, it primarily stats large numbers of original data and obtains the probability distributing functions of each assessment factor by means of Pearson x2 Goodness of Fit Test. And then it establishes the distributing sections of the error of each assessment factor. Meanwhile it expatiates the criteria of simulator coach’s subjective judgments. In the chapter 5, it puts forward the database application system of radar simulator and designs the module structure of the system. It further relates the functions of the database management module of radar simulator, and it discusses the database designing of the system. In the chapter 6, it develops the database application software of radar simulator based on Borland Database Engine (BDE) by means of Borland C++ Builder 5.5. It introduces the main functions of the software that is effective after being tested and analyzed in the chapter 6.

【关键词】 雷达模拟器雷达标绘评估系统数据库BDE
【Key words】 radar simulatorradar plottingassessment systemdatabaseBDE
  • 【分类号】U666.158
  • 【被引频次】5
  • 【下载频次】376
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