CINRAD/SA雷达DAU技术升级和功能介绍
Technology Upgrades and Features Introduction about DAU of CINRAD/SA Radar
DOI: 10.12677/OJNS.2018.64041, PDF,    科研立项经费支持
作者: 吴艳锋, 张 垚*：北京敏视达雷达有限公司，北京
关键词: DAU；FPGA；状态机；故障定位；可靠性；DAU； FPGA； State Machine； Locating Faults； Reliability
摘要: 数据采集单元DAU作为天气雷达的监控单元，在CINRAD/SA雷达调机和维修时故障定位中起到了重要的辅助作用。在新一代天气雷达面临技术升级和双偏振技术开发时，需要为其研制满足功能要求的DAU技术升级电路。文中介绍了基于FPGA作为控制核心的DAU技术方案，该设计不仅实现了原有基础上RDASC与DAU之间通信接口及雷达信号监控的功能，而且拓展了双偏振技术新增的功率监控和控制命令需求。新型的DAU电路板在功能上能够完全兼容替换旧型号的电路板，且新板电路布局和信号走线更加合理，单板性能的加强使得雷达系统的稳定性和可靠性得到进一步提升。新方案的DAU电路已经应用到SA，SB，CA，CB及X波段等多个型号的天气雷达中，通过详细的功能介绍希望能为相关领域的技术人员对雷达日常的使用和维护提供一定的借鉴和参考。
Abstract: Data Acquisition Unit as a monitoring unit for China’s New Generation Weather Radar has played an important role in tuning and locating faults in radar maintenance. When CINRAD radar is facing technological upgrades and dual-polarization technology development, it needs to develop a meeting functional requirements DAU technology. We introduce the DAU technology solution based on FPGA as the control platform. It not only meets the functional requirements of the original communication interface between Radar Data Acquisition Status Control and DAU, but also expands the control command requirements for dual-polarization operations. The new DAU boards can replace the old ones for fully function, what is more, the new-board circuits have better layout and more reasonable signal routing. It enhanced performance of new DAU boards, further improved the stability and reliability of the radar system. So far, the new-method DAU boards have been used in CINRAD radars such types as SA, SB, CA, CB and X band radars. New DAU is detailed introduced here, so as to help those radar technicians in their work.
文章引用：吴艳锋, 张垚. CINRAD/SA雷达DAU技术升级和功能介绍[J]. 自然科学, 2018, 6(4): 297-305. https://doi.org/10.12677/OJNS.2018.64041

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