| 田 韵,侯灿靖,李爱琴.改进的着陆引导雷达天线角基准校验仪[J].电子测量与仪器学报,2020,34(12):117-124 |
| 改进的着陆引导雷达天线角基准校验仪 |
| Improved calibrator for antenna angular reference of landing guidance radar |
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| DOI： |
| 中文关键词: 校验仪 着陆引导雷达 天线角基准 辐射 三轴程控转台 被动式 自动寻峰 |
| 英文关键词:calibrator landing guidance radar antenna angular reference radiation three axis programmable turntable passive mode peak-seeking automatically |
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| 中文摘要: |
| 针对传统的着陆引导雷达天线角基准校验方法的电磁辐射量大、抗环境干扰能力弱、工作效率低等缺点,提出并实现了
一种改进的校验仪。 改变被测天线主动发射大信号方式为被动接收小信号,校验仪远端采用三轴程控转台加伺服控制机构实
现对标准源天线的精确控制,配合近端的操作软件,在天线测试外场 150 ~ 250 m 遥控源天线动作,具有自动寻峰、数据判断存
储功能。 改进后对人体辐射量仅为原来的 1 / 850 000,测试人员数量从 4 人减少为 2 人,时间从 2 h 缩短到 30 min 以内。 实验
证明改进的雷达天线角基准校验仪完全可以替代传统的校验仪。 |
| 英文摘要: |
| For traditional calibrating method of the antenna angular reference of landing guidance radar, a large amount of electromagnetic
radiations is unavoidable, the capacity of resisting disturbance is lower and the work is inefficient. An improved method is proposed. The
measured antenna received small signal instead of transmitting large signal during the testing procedure. Three axis programmable
turntable and servo controller were adopted at far field testing to control the horn antenna move precisely, and working with the near-end
operational software. The horn antenna can be remotely controlled between the distance of the 150 to 250 meters. Peak-seeking
automatically and data logging and storage were realized as well. Compared with the traditional calibrating method, the electrical
radiation reduced to 1 ∶ 850 000,the testing stuff reduced from 4 to 2 and the testing time reduced from 5 hours to 0. 5 hour. The
improved calibrator which is proved by the experiments can replace the old one completely. |
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