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一种微纳卫星UHF地面接收设备的设计
2020年电子技术应用第8期
何林飞,李晓飞,韩俊博
天津讯联科技荣鼎彩手机app下载,天津300000
摘要: 针对常规微纳卫星的地面UHF(超高频) 接收设备复杂、系统庞大问题,提出了一种使用软件无线电芯片AD9361简单易行的地面接收方案。设备由射频前端、基带处理和上位机部分组成。通过对射频链路、灵敏度进行分析,从理论上确保方案的可行性。通过对模拟信号源接收实验,结果表明该UHF接收设备方案切实可行,并已在微纳卫星信号实收测试中得到应用。
中图分类号: TN927;V556
文献标识码: A
DOI:10.16157/j.issn.0258-7998.191343
中文引用格式: 何林飞,李晓飞,韩俊博. 一种微纳卫星UHF地面接收设备的设计[J].电子技术应用,2020,46(8):92-94,100.
英文引用格式: He Linfei,Li Xiaofei,Han Junbo. Design of UHF receiving equipment for micro/nano satellite[J]. Application of Electronic Technique,2020,46(8):92-94,100.
Design of UHF receiving equipment for micro/nano satellite
He Linfei,Li Xiaofei,Han Junbo
Tianjin Xunlian Technology Co.,Ltd.,Tianjin 300000,China
Abstract: In view of the complexity and huge system of UHF(ultra-high frequency) telemetry ground station of conventional micro/nano satellite,a simple ground receiving scheme using AD9361 is designed. The equipment is composed of RF front-end, baseband processing and upper computer. Through the analysis of RF chain and sensitivity, the feasibility of the scheme is ensured theoretically. Through the experiment of the analog signal source receiving, the results show that the scheme of the UHF receiving equipment is feasible and has been applied in the micro/nano satellite signal receiving test.
Key words : micro/nano satellite;ultra-high frequency telemetry;AD9361;sensitivity

0 引言

    微纳卫星设计周期短、成本低,受到商业航天界的青睐[1]。USB(S频段统一测控系统)和UXB(X频段统一测控系统)频段均需要向无线电主管部门进行频率申请,成本高且周期长,因而绝大多数微纳卫星均选用VHF/UHF(甚高频/超高频)业余无线电、无需申请的频段进行测控[2]

    本文提出一种UHF频段的卫星地面接收设备的设计方案,所针对的星上遥测接口为:

    (1)载波频率:410 MHz±4 MHz;

    (2)调制方式:BPSK;

    (3)码速率:4 096 b/s;

    (4)星上发射功率:≥26 dBm;

    (5)星上天线增益:≥-3 dBi;

    (6)帧长:128 B(1 024 bit),每秒4帧;

    (7)同步头:EB90。




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作者信息:

何林飞,李晓飞,韩俊博

(天津讯联科技荣鼎彩手机app下载,天津300000)

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