空间辐射环境中的抗辐射是航天事业发展中的一个重要课题,研究方法有实验和计算机模拟两大类,其中实验研究由于实验条件、实验次数等方面因素使其具有一定的局限性,相比之下,计算机模拟研究具有其独特的优势,而程序的功能是否完善直接关系到模拟的可靠性。因此,该文针对SHIELD程序的不足之处进行改进,主要包括移植更复杂的几何模型,添加能谱入射方式,在输出上增加了能量角分布、深度剂量分布等功能,并把改造后的程序模拟复杂卫星模型,结果表明改造后的程序能更真实地进行模拟。 Radiation in space radiation environment is an important issue in the development of aerospace industry. The research methods include two types of experiments and computer simulations. The experimental research has some limitations because of the experimental conditions, the number of experiments and so on, Under the computer simulation research has its unique advantages, and the function of the program is perfect, directly related to the simulation reliability. Therefore, this paper improves the shortcomings of the SHIELD program, including the migration of more complex geometric models, the addition of energy spectrum incident mode, the addition of energy angle distribution, depth dose distribution and other functions, and the transformation of the program Simulation of complex satellite model, the results show that the modified program can be more realistic simulation.