基于MicroBlaze的测控应答机地面站发射系统的设计与实现

摘要

地面站(ground station)即设置在地球上完成对卫星跟踪测量的地面设备,本设计以Micro-Blaze和射频一体化芯片为核心,移植了精简的TCP/IP协议栈,完成了复杂多路遥控、遥测数据及状态信息的传输;设计了精确频率侧音序列产生电路和遥控副载波产生电路,完成了对数据指令和状态信息的调制;引入Xilkernel嵌入式操作系统,对整个系统资源分配进行管理,提高了系统的灵活性;最终形成了一个功能完整有效并具有实际应用价值的测控应答机地面站发射系统.该系统通过Chipescope和频谱仪验证测试,达到了预期的要求.%Ground station is the ground equipment that set up on the earth to control and track the satellite,we use the MicroBlaze and RF integrated chip as the core,transplant a streamlined TCP/IP protocol stack to complete the complex multi-channel remote control,and the transmission of telemetry data and state information.Meanwhile,a precise frequency side tone sequence generation circuit and a remote subcanrier generation circuit are designed to complete the modulation of the data instruction and state information.The Xilkernel embedded operating system is introduced to manage the whole system resource allocation and improve the system's flexibility.Finally an effective and practical ground station launch system is formed.The system is verified by Chipescope and spectrum analyzer,which meets the expectation.