Model-based spacecraft demand defining and modeling method

The invention discloses a spacecraft demand defining and modeling method based on a model, and belongs to the technical field of spacecraft demand demonstration. According to the method, standardized, modeled and systematic spacecraft demand definition is formed through formalized modeling means. The method can be applied to spacecraft demand argumentation and conceptual design stages and can also be applied to development demand argumentation stages of other products, standardization and programming of model-based demand argumentation can be promoted, the demand argumentation efficiency can be improved, the argumentation period can be shortened, and therefore the response speed of a system or a product to missions or markets is increased. 一种基于模型的航天器需求定义与建模方法，属于航天器需求论证技术领域。本发明通过形式化建模手段，形成规范化、模型化、体系化的航天器需求定义。本发明可以应用于航天器需求论证与概念设计阶段，也可以应用在其他产品的研制需求论证阶段，不仅可以促进基于模型的需求论证规范化、程序化，也可以提高需求论证效率，缩短论证周期，从而提高系统或产品对使命或市场的反应速度。