大射电望远镜候选台址三维仿真及参数优选研究  

Research on Three-Dimension Simulation and Parameters Optimization System for the Site of Large Radio Telescope

作　　者：刘宏[1] 宋建波[1] 王文俊[1] 彭勃[2] 南仁东[2] 

机构地区：[1]贵州大学喀斯特环境与地质灾害防治省级重点实验室,贵州贵阳550003 [2]中国科学院国家天文台,北京100012

出　　处：《矿业研究与开发》2005年第4期42-46,共5页Mining Research and Development

基　　金：中国科学院知识创新工程重要方向项目(FAST[方]-D-02);贵州省重大科技攻关项目(黔科合2003JN014);中国博士后基金(中博基字[2003]11);贵州省科学基金(黔科合计[2004]3036)

摘　　要：以贵州喀斯特洼地为侯选台址的大射电望远镜,其球冠由球半径R、圆心夹角θ、球底高程ZR0及球心平面坐标X、Y等决定,且这些参数的组合具多解性。为保证挖填方总量最小、工程造价最低,综合采用图形处理技术、三维数字仿真技术和优化设计思想,以VC++语言开发了大射电望远镜台址三维仿真及参数优选系统FASTV,并将该系统用于大窝凼洼地的望远镜台址参数优选及挖填方量计算。该系统还考虑了人工边坡稳定问题,具有精确、高效、全面等特点,能够根据洼地几何形态,确定射电望远镜最优台址参数。The geometry of a large spherical radio telescope, which is planed to construct by making use of the karst depression in Guizhou region as its potential site, is constrained by such parameters as the radius （R） , opening angle （ θ ） , the bottom elevation （ZR0） and the planar coordination （x, y） of center of a fitting spherical cap, and these parameters could have different setting combinations. In order to optimize the parameters with a minimum volume of dug and filled earth, and meet the lowest cost in terms of civil engineering for a selected karst depression, a three- dimensional simulation and parameters optimization system for the potential site of the proposed larg radio telescope, FASTV, has been developed with the VC ＋ ＋language, graphical processing and three -dimension digital simulation techniques and the optimizing theory, in which the stability of slope is considered. The developed system has used for optimization of the site parameters of the proposed large radio telescope in Dawodang depression in Pingtang county and the calculation of its volume of dug and filled earth, and the results show that the simulation and optimization system （FASTV） has the advantages of high accuracy and high efficiency, and can provide the optimum site parameters of radio telescope according to the shape of a karst depression correctly and quickly.

关 键 词：大射电望远镜 喀斯特洼地 台址参数优选 仿真系统 

分 类 号：P111[天文地球—天文学] TP391.9[自动化与计算机技术—计算机应用技术]