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一种天基物联网的天地通信链路设计

更新时间:2020-11-22 03:29:58 大小:2M 上传用户:zhengdai查看TA发布的资源 标签:物联网 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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本文依托物联网应用需求和地基物联网固有的技术局限,设计了一种利用低轨卫星进行物联网广域覆盖的天基物联网中天地链路指标和方法。首先分析了物联网对通信的基本需求,进而给出了可行的卫星轨道、通信速率、通信频率等预设,根据预设演算仿真了天地通信链路的参数、调制方法、信道编码、交织方法,并设计了地面上廉价物联网终端接入低轨卫星的通信步骤和流程,为物联网应用航天技术实现不受地域、地形、地基网络覆盖范围制约低成本的全球覆盖,提供了一种新的可行性设计方案。

Based on the application requirements of IoT and the inherent technical limitations of the ground-based IoT,the indexes and methods of a space-based IoT space-ground link is proposed,which uses low-orbit satellites for the wide coverage of stly,the basic requirements of IoT for communication are analyzed,and then gives the feasible presuppositions of satellite orbit,communication rate and radio calculates and simulates the parameters,modulation method,channel coding and interleaving method of the space-ground communication link according to the presuppositions and designs the communication steps and flow of the cheap IoT terminal connecting to the low-orbit satellite on the ground,which provides a new feasible design scheme for the application of space technology of IoT to realize the low-cost global coverage which is not restricted by territory,terrain and ground-based network coverage.

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一种天基物联网的天地通信链路设计.pdf 2M

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