一種微納衛(wèi)星UHF地面接收設備的設計
2020年電子技術應用第8期
何林飛,李曉飛,韓俊博
天津訊聯(lián)科技有限公司,天津300000
摘要: 針對常規(guī)微納衛(wèi)星的地面UHF(超高頻) 接收設備復雜、系統(tǒng)龐大問題,提出了一種使用軟件無線電芯片AD9361簡單易行的地面接收方案。設備由射頻前端、基帶處理和上位機部分組成。通過對射頻鏈路、靈敏度進行分析,從理論上確保方案的可行性。通過對模擬信號源接收實驗,結果表明該UHF接收設備方案切實可行,并已在微納衛(wèi)星信號實收測試中得到應用。
中圖分類號: TN927;V556
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.191343
中文引用格式: 何林飛,李曉飛,韓俊博. 一種微納衛(wèi)星UHF地面接收設備的設計[J].電子技術應用,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.
文獻標識碼: A
DOI:10.16157/j.issn.0258-7998.191343
中文引用格式: 何林飛,李曉飛,韓俊博. 一種微納衛(wèi)星UHF地面接收設備的設計[J].電子技術應用,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
微納衛(wèi)星設計周期短、成本低,受到商業(yè)航天界的青睞[1]。USB(S頻段統(tǒng)一測控系統(tǒng))和UXB(X頻段統(tǒng)一測控系統(tǒng))頻段均需要向無線電主管部門進行頻率申請,成本高且周期長,因而絕大多數(shù)微納衛(wèi)星均選用VHF/UHF(甚高頻/超高頻)業(yè)余無線電、無需申請的頻段進行測控[2]。
本文提出一種UHF頻段的衛(wèi)星地面接收設備的設計方案,所針對的星上遙測接口為:
(1)載波頻率:410 MHz±4 MHz;
(2)調(diào)制方式:BPSK;
(3)碼速率:4 096 b/s;
(4)星上發(fā)射功率:≥26 dBm;
(5)星上天線增益:≥-3 dBi;
(6)幀長:128 B(1 024 bit),每秒4幀;
(7)同步頭:EB90。
本文詳細內(nèi)容請下載:http://ihrv.cn/resource/share/2000002957
作者信息:
何林飛,李曉飛,韓俊博
(天津訊聯(lián)科技有限公司,天津300000)
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