Study On Huge-capacity Radar Data Storaging And Managing Techiques

Data storage system is an essential part of a radar system. In many cases, radar echo signals need to be saved in a storage system before the analysis and process, and then a portion of the data will be extracted and analyzed according to what we need. While specific type of radar requires not only long time recording in one time, but also in high speed, which cause the high requirements of the data storage system. Meanwhile, since the number of the radar echo data in the storage system is huge, we will spend a lot of time in data retrievaling when some part of the echo data is needed. Therefore, retrivaling required data in a huge-capacity radar data storage system becomes an important research aspect.In this thesis, we designed a huge-capacity radar data storage and management system and finished the implementation of controlling software.Firstly, we introduced the background knowledge of the storage system. According to the feature of storage system, we selected some okey technologies: Solid-state recording techenology, SATA, and RAID. In the part of database, we introduced the structure of database system, and then analyzed the advantage of using index technology when retrivaling data in database.Secondly, we designed a huge-capacity radar data storage system. According to the needs of radar echo data analysis and process, we presented a scheme of radar data storage and management. We designed the overall system and every modules of the system. In the end, we designed the file format of storage system that was used in the software.Thirdly, we studyed the technology of the communication interface and data transmission interface of the system, and programmed the interface modules. In order to achieve the protability and high speed data transmission of the system at the same time, we used network interface to transfer control data and used PCI Express interface to transfer real-time data. This can make us use portable PC to control the system when there is no need of radar echo data transmission.Finally, we designed the control software and the database system. We designed the control software and presented the method of managing the radar echo data by applying database. We designed the data format of radar echo so that the MySQL database could use it. Test results showed that the software can control the storage system, and the operation rate can reach 4GB/s. And loading the data from storage system can reach 300MB/s. The database system can manage the radar echo data in an convenient way, and it can improve the efficiency of radar echo data retrieval remarkably.