关键词: 算法, 计算树, 配置文件, 耦合度, 可复用性

Abstract: Simulation system of spacecrafts' Telemetry and Command (TT&C) needs to simulate lots of telemetry parameters in every missions, whose computing algorithms are different. In the past applications, these algorithms are fixed as codes in software programs, so it is very difficult to improve the maintainability and reuse of the simulation system. By studying the computing methods of telemetry parameters described in configuration files, a design scheme was given in which the algorithms of parameters were flexibly configured, and the principle of methods were described specially in computing parameters, software models, data structure and algorithms. In this framework, the algorithms dealing with data were separated from codes in software so that coupling degree was decreased between development of software and space missions, the reusability was enhanced, and the stability was protected effectively. In the experiment, telemetry parameters were computed by this methods, and the results show that this method is very effective.

Key words: algorithm, computation tree, configuration files, coupling degree, reuseability