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首页> 外文期刊>Journal of atmospheric and solar-terrestrial physics >Observations of temperature profiles by 443MHz wind profiling radar using a radio acoustic sounding system in Okinawa
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Observations of temperature profiles by 443MHz wind profiling radar using a radio acoustic sounding system in Okinawa

机译：使用无线电探空系统在443MHz风廓线雷达上观察温度剖面

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摘要

The present study is devoted to developing a radio acoustic sounding system (RASS) for the 443. MHz wind profiling radar (443. MHz WPR) installed at the Ogimi Wind Profiler Facility of the National Institute of Information and Communications Technology (NICT) in Okinawa, Japan. We used four fixed horns attached to the sides of the 443. MHz WPR antenna. Additional 15 portable horn speakers were also installed to transmit acoustic waves at frequencies of 900-1050. Hz, which is suitable for the 443. MHz WPR with RASS (443. MHz WPR/RASS) observation. We also developed the software to switch active speakers adaptively by considering the real-time raytracing results of acoustic wavefronts. In the software, four fixed speakers are always activated and several portable speakers are selectively used in order to efficiently obtain strong RASS echoes. Aiming at unmanned operation of the 443. MHz WPR/RASS, a remote control and monitoring system for 443. MHz WPR/RASS observation and a data processing system to derive virtual temperature profiles were developed. Virtual temperature profiles obtained using the 443. MHz WPR/RASS were evaluated by comparison with the data from radiosondes launched from the radar site in 2006.
机译：本研究致力于为安装在冲绳国立信息与通信技术学院（NICT）的Ogimi风廓线仪设施上的443. MHz风廓线雷达（443. MHz WPR）开发无线电无线电测深系统（RASS）。 ， 日本。我们在443. MHz WPR天线的侧面使用了四个固定的号角。另外还安装了15个便携式号角扬声器，以900-1050的频率传输声波。 Hz，适合通过RASS（443. MHz WPR / RASS）观察的443. MHz WPR。我们还开发了通过考虑声波阵面的实时光线跟踪结果来自适应地切换有源扬声器的软件。在该软件中，始终会激活四个固定扬声器，并有选择地使用几个便携式扬声器，以有效获得强大的RASS回声。针对443.MHz WPR / RASS的无人操作，开发了443.MHz WPR / RASS观测的远程控制和监视系统以及用于导出虚拟温度曲线的数据处理系统。通过与2006年从雷达站点发射的无线电探空仪的数据进行比较，评估了使用443.MHz WPR / RASS获得的虚拟温度曲线。

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