摘要: |
介绍了目前卫星通信的频段分布并对其进行了对比;对S频段卫星通信给出了链路预算,并进行了卫星移动通信的探索和实验,通过低信息速率的短报文和语音通信设备的研发,对低速率卫星移动通信进行了验证和分析。结果表明,采用全向天线的S频段低信息速率的卫星通信系统完全可以在处理突发事件的应急通信中发挥作用,并具有成本低、终端简单、应用方便、安全可靠等优点。 |
关键词: 卫星移动通信系统 S频段 低信息速率 应急通信 全向天线 |
DOI: |
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基金项目:国家自然科学基金资助项目(271284F010203);浙江省自然科学基金青年基金资助项目(LQ13F010010);浙江省重点科技创新团队项目(2013TD03) |
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Exploration and experiment of low information rate satellite communication system in S-band |
SHANG Junna,LI Lin,LIU Chunju,WEI Yanfei |
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Abstract: |
The frequency distribution of current satellite communication is introduced and compared,link budget for S-band satellite communication is given,the exploration and experiment of the satellite communication system in S-band is presented.The low information rate satellite communication in S-band is verified and analyzed by developing the short message and voice communication equipment.Results show that satellite communication system of low information rate in S-band using omnidirectional antennas can play a role in emergency communications and it has such advantages as low cost,friendly terminal,convenient application,high safty and reliability. |
Key words: satellite mobile communication system S-band low information rate emergency communication omnidirectional antenna |