This paper describes the design and implementation of Black Lion, a purely software-based, distributed environment for integrated testing of independent spacecraft mission models. The Black Lion simulation environment is architected to be reconfigurable, allowing for any number of heterogenous software models, across one or multiple computing platforms, to be integrated into a single spacecraft simulation. This architecture enables seamless integration of legacy software models that were never designed to work together into mission-wide simulations. A flat-sat scenario is used to showcase the capabilities of Black Lion. In this flat-sat scenario, Black Lion synchronizes and ties together the following components: a ground system model, a spacecraft physical simulation, and a flight processor emulator in which the flight software application executes. The numerical simulation presented in this paper showcases the closed-loop behavior of the entire spacecraft system.

本文描述了 Black Lion 的设计和实现，Black Lion 是一个纯软件的分布式环境，用于独立航天器任务模型的集成测试。Black Lion 仿真环境的架构是可重新配置的，允许跨一个或多个计算平台将任意数量的异构软件模型集成到单个航天器仿真中。这种架构能够将从未设计为协同工作的遗留软件模型无缝集成到任务范围的模拟中。使用平地场景来展示 Black Lion 的能力。在这个平坦的场景中，Black Lion 将以下组件同步并连接在一起：地面系统模型、航天器物理模拟、和飞行处理器模拟器，飞行软件应用程序在其中执行。本文中提出的数值模拟展示了整个航天器系统的闭环行为。