粒子加速器局部控制网形变分析  

Analysis on deformation of partial control network of particle accelerator

作　　者：张旭东 陈文军[1] 张小东[1] 孙国珍[1] 张斌[1] 王少明[1] 袁建东[1] Zhang Xudong;Chen Wenjun;Zhang Xiaodong;Sun Guozhen;Zhang Bin;Wang Shaoming;Yuan Jiandong(Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《强激光与粒子束》2022年第4期91-98,共8页High Power Laser and Particle Beams

摘　　要：基于泰勒展开的方法实现局部控制网的拟合,使用卡方检验判断局部控制网中是否存在形变点。若存在形变点,则在选权迭代的过程中找到局部控制网中所有的形变点,并将卡方检验通过作为迭代终止条件。对哈尔滨工业大学空间地面模拟装置2号终端控制网的两期观测成果进行了分析,实验表明,将卡方检验和选权迭代法加入控制网拟合之后,可以很好地探测出局部控制网中的形变点。在找出所有形变点之后,可以求得更为准确的局部控制网拟合参数。The fitting of the local control network is realized based on the method of Taylor expansion, and the chi-square test is used to judge whether there is a deformation point in the local control network. If there are deformation points, find all the deformation points in the local control network in the process of weight selection iteration, repeat the above process until the chi-square test passes. The two-phase observation results of the Harbin Institute of Technology Space Environment Simulation and Research Infrastructure(SESRI) No.2 terminal control network are analyzed. The experiments show that after adding the chi-square test and the weight selection iteration method to the control network fitting, the deformation points in the local control network can be well detected. After finding all the deformation points, more accurate local control network fitting parameters can be obtained.

关 键 词：形变分析 控制网拟合 选权迭代 卡方检验 粒子加速器 

分 类 号：TL56[核科学技术—核技术及应用]