| 摘要: |
| 在移动平台上(如船舶、汽车等)进行卫星通信接收的场景与固定位置平台有极大不同，需要考虑到移动平台的接收位置空间资源紧张，并且会随着平台位置的移动变化遮挡接收天线的接收效果。采用双天线接收的方式进行卫星通信可极大解决单天线遮挡问题，但会导致数据重复冗余。为解决上述问题，设计了一种基于键值对（Key,Value）结构的双天线数据去重拼接算法。根据卫星数据中的数据帧特点，以数据帧特定字段为关键字设计了数据结构。以键值对数据结构为基础对输入的双路数据进行处理，实现了数据精确去重及高效拼接输出，同时考虑了数据的实时性和可靠性。双天线去重拼接方法为移动平台中卫星持续接收数据接提供了一个新的思路，并且已经在工程中实际应用，接收效果良好。在遮挡天线1/3的实验情况下，采用双天线去重拼接方法的数据接收率相比于传统单天线，效果提升15.69%。 |
| 关键词: 卫星通信 移动平台 接收遮挡 双天线去重拼接 |
| DOI：10.20079/j.issn.1001-893x.231219001 |
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| 基金项目: |
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| A Dual-antenna De-duplication and Montage Method for Solving Satellite Reception Occlusion on Mobile Platforms |
| WANG Yingjie,ZENG Fuhua,WANG Junhui,CHEN Wenyuan |
| (Southwest China Institute of Electronic Technology,Chengdu 610036,China) |
| Abstract: |
| The scenario of satellite reception on mobile platforms such as ships,cars,etc. is greatly different from that of fixed position platforms.It is necessary to consider that the space resources of the mobile platform are tight,and the signal reception effect may be blocked with the movement of the platform.To solve these problems,a dual-antenna receiving method for satellite communication is proposed.In order to solve the redundant problem of dual-antenna data receiving repeatedly,a data de-duplication algorithm based on key-value pair structure is designed.According to the characteristics of satellite data frames,specific data fields are used as keys to process the input dual-channel data,realizing data de-duplication and efficient splicing output,and also considering the real-time and reliability of the data.The method provides a new idea for satellite to receive data continuously in mobile platform,and has been applied in engineering with good effect.In the experimental situation of blocking 1/3 of the antenna,the data reception rate using the de-duplication and montage method has improved by 15.69% compared with that of the traditional single antenna. |
| Key words: satellite communication mobile platform reception obstruction dual-antenna de-duplication and montage |
