摘要
通过中继卫星返向链路传输遥测数据是国内运载火箭发射采用的新技术,需要依据任务实际情况调整箭载设备技术状态,使其满足数据传输要求。通过分析箭载设备的组成和遥测数据传输链路,仿真计算了相控阵天线指向角和等效全向辐射功率值,实际天线跟踪角度测量值和数据传输情况验证了分析的准确性。对应用当中出现的返向链路信号干扰地面遥测设备问题,采取了应急措施并为后续任务提出了改进建议,讨论了进一步完善数据链路的技术途径。
Transmitting telemetry data via a relay satellite return link is the new technology used in launch vehicle,and it is necessary to adjust technical state of rocket-borne equipment to meet the requirements of data transmission based on the actual task.By analyzing the composition of the rocket-borne equipment and the telemetry data transmission link,the pointing angle of phased array antenna and EIRP is calculated,the accuracy of the analysis is verified by the measurement of actual antenna tracking angle and the data result transmitted.Emergency measures are adopted to solve the problems in the application such as interference to the ground telemetry equipment,and suggestions for improvement are put forward for the following tasks,and the technical ways to further improve the data link are discussed.
出处
《无线电工程》
2017年第8期36-39,共4页
Radio Engineering
关键词
运载火箭
中继用户终端
数据传输链路
相控阵天线
launch vehicle
relay subscriber terminal
data transmission link
phased-array antenna
