小卫星CAN总线网络物理层研究

控制器局域网（CAN）总线是目前卫星采用的总线之一,CAN总线网络物理层的设计对通信性能有直接影响。文章对传输介质、阻抗匹配、信号反射、接口电路、位定时配置和网络连接等设计进行了分析,对网络物理层主要参数的影响进行了仿真和测试,提出了传输介质、防反射、接口电路和位定时参数等四个方面的改进措施。

Technology of Satellite Network Physical Layer Based on CAN bus

CAN bus is in regular used by satellite. The design of CAN network physical layer has direct influence on communication performance. In this paper, by researching of transmission me- dium, impedance matching, signal reflecting, interface circuit, bit timing setting and network connecting which belong the satellite network physics layer based on CAN bus, we put forward a detailed simulation and test. Finally, this paper provides a method for improving the design of CAN bus network physical layer of satellite.