火星探测深空链路模拟平台设计与实现

摘要

Based on MCU control, a simulation platform of Mars and the earth communication link is estab-lished for the environment of deep-space communication is too complex to measure. With MSP430 MCU as the hardware foundation and in combination of C# software development, the overall structure of the plat-form is composed of two parts:the hardware circuit and the software of PC, and these two parts implement communication via USB interface. The signal processing is completed by the hardware circuit which com-municates with PC at the same time, thus the software of PC can realize dynamic demonstration. The ex-periment results indicate the coincidence of platform test results with theoretical results. This platform, for its easy operating and stable running, may be used as an assistant means for parameters design and per-formance evaluation of deep-space communication system in China’s Mars Exploration Project, and this is of important engineering significance.%针对深空通信环境复杂又难以实测的问题，构建了一种基于单片机控制的火星探测器-地球通信链路模拟平台。该平台采用MSP430系列单片机为硬件基础，结合C #软件开发，整体结构由硬件电路和软件上位机构成，二者通过USB接口进行数据通信。信号处理由硬件电路完成，同时PC机实时和硬件电路进行数据交互，完成软件上位机的动态演示。实测结果表明，该平台的测试结果与理论分析结果相吻合，操作简便且运行稳定，可用于辅助我国火星探测中火地通信系统的参数设计和性能评估，具有重要的工程借鉴意义。