| 一种轻小型S波段卫星中继通信机的设计与实现 |
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| 引用本文： | 饶浩,梁显锋,张津舟,安军社.一种轻小型S波段卫星中继通信机的设计与实现[J].海洋技术,2019,38(4):15-20. |
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| 作者姓名： | 饶浩 梁显锋 张津舟 安军社 |
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| 作者单位： | 中国科学院国家空间科学中心,北京100190;中国科学院大学,北京100190;中国科学院国家空间科学中心,北京,100190;华为科技有限公司(北京),北京,100085 |
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| 基金项目： | 中国科学院重点部署项目 |
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| 摘 要： | 针对远海无人值守浮标与岸基站间的实时、可靠和高速率通信需求,研制了一种轻小型S波段卫星中继通信机。通过采用高集成度的零中频接收单元和25 W高效率GaN功放发射单元,实现了对岸站遥控指令(2 kbps)的接收和浮标载荷数据(2 Mbps)的实时回传。通过提高收发隔离度和实时解算接收信噪比,确保了海上卫星通信的高可靠性。通过射频前端和信号处理单元等硬件的一体化设计,实现了整机的轻小型化(尺寸约为192 mm×134 mm×92 mm,质量小于2.0 kg)和低功耗(低于80 W)。四级海况下的海上试验表明,S波段中继通信机能够满足复杂海况条件下远海浮标的实时高速率双向通信需求,大回路数据通信误码率Pe10-5。
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| 关 键 词： | 浮标 S波段链路 卫星中继通信机 零中频 |
The Design and Implementation of a Light and small S-Band Satellite Relay Transceiver |
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| RAO Hao,LIANG Xian-feng,ZHANG Jinzhou and An Junshe.The Design and Implementation of a Light and small S-Band Satellite Relay Transceiver[J].Ocean Technology,2019,38(4):15-20. |
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| Authors: | RAO Hao LIANG Xian-feng ZHANG Jinzhou and An Junshe |
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| Abstract: | A S-band satellite-relay transceiver of light and miniaturization is designed and implemented to meet the requirements of real-time reliable and high-speed communication between unmanned buoys on the sea and shore-based station. The receiving of remote control instruction (2 kbps) and the real-time return of buoy load data (2 Mbps) are realized by using highly integrated zero-IF receiving unit and high efficiency GaN power amplifier transmitting unit with power of 25 W. The high reliability of marine satellite communication is ensured by improving the isolation between transmitter and receiver and calculating the received SNR(signal to noise ratio)in real time. Through the integrated design of hardware such as RF front-end and signal processing unit, the miniaturization (size is about 192 mm *134 mm *92 mm, mass is less than 2.0 kg) and low power consumption (less than 80W) of the transceiver are realized. The sea trials under four-stage sea conditions show that the S-band relay transceiver can meet the real-time high-speed bidirectional communication requirements of the offshore buoy under complex sea conditions, and the BER(bit error rate) of large loop data communication is less than 10-5. |
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| Keywords: | buoys S-band link satellite-relay transceiver zero-IF |
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