| 一种基于FPGA的雷达导航系统数据高效管理与检索方法 |
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| 引用本文： | 朱金慧,狄中泉,王增利.一种基于FPGA的雷达导航系统数据高效管理与检索方法[J].导航与控制,2017(6):10-13. |
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| 作者姓名： | 朱金慧 狄中泉 王增利 |
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| 作者单位： | 1. 西昌卫星发射中心,西昌,615000;2. 零八一电子集团有限公司,成都,611731 |
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| 摘 要： | 传统导航雷达信号采集回放系统中,文件系统构建和管理常基于操作系统,不能满足高带宽数据的实时存储与回放.针对此问题,提出了一种基于FP GA的两级文件管理与检索方法,第一级根据文件信息粗略地定位到文件,第二级根据B码时间等信息定位到具体数据包.利用FP GA的并行处理特性完成信息系统建立、文件系统建立和数据检索,实现了高速海量数据的高效管理与检索.与传统数据管理方式相比,本文所述的数据管理与检索方式占用存储空间小,逻辑简单,易于硬件实现.
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| 关 键 词： | 文件管理 检索 数据定位 |
A Method of Effective Data Searching and Management Using FPGA in Navigation Radar System |
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| ZHU Jin-hui,DI Zhong-quan and WANG Zeng-li.A Method of Effective Data Searching and Management Using FPGA in Navigation Radar System[J].Navigation and Control,2017(6):10-13. |
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| Authors: | ZHU Jin-hui DI Zhong-quan and WANG Zeng-li |
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| Abstract: | In traditional navigation radar's signal sampling and replaying system, file system creation and management always rely on operating system, which cannot satisfy wideband data storing and replaying in real time. To resolve this prob-lem, this article proposes a two-level file managing and searching method which is realized on FPGA. In the first-level step, we can roughly locate related files via file information, and in the second-level, we can precisely locate the data pack-ets which we want via information such as the B code time and so on. Information system, file system and data location can all be processed in parallel through FPGA. We realized managing and searching efficiently in wideband large-scale data system. The method described in this article for data managing and searching occupies smaller space and has simpler logic, in the same time the method is easier to be realization compared with traditional data managing methods. |
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| Keywords: | file management file searching file locating |
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