Development of a transportable S-band boundary layr radar

便携式S波段边界层雷达的研制

• 批准号: 07554018
• 负责人: FUKAO Shoichiro
• 金额: $ 12.54万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07554018/
• 关键词: Boundary layr radar; S-band; Pulse compression; Phased array antenna; Transportable; 移動観測

In this study, we have developed a transportable S-band boundary layr radar (BLR) system which is small, light, and portable. S-band BLR consists of an antenna unit, a transmitter/receiver unit, a data acquisition unit, and a data processing unit.・The antenna unit is a phased array antenna with a diameter of 1 m and a gain of 26 dBi.・The transmitter/receiver unit has the performance of a transmitted frequency of 3.05 GHz, a peak power of 500 W,a band width of 10 MHz, and a duty ratio of less than 20%.・The data acquisition unit mainly consists of A/D converters and DSP (Digital Signal Processor) tips. It converts received signal into digital data, and performs decoding of pulse compression and coherent integrations. In order to perform these calculation in real-time, the data acquisition unit uses eight DSP tips in parallel.・The data processing unit consists of a workstation, controls the radar, and performs a data processing in real-time. By using the workstation, unmanned operation is available, and 'Quick Look'of observation data is also available in parallel with observations. Start and stop of observations can operate by using GUI (Graphical User Interface).We conducted simultaneous observations with the MU radar at the Shigaraki MU observatory. From comparison with the observation results by the MU radar, we confirmed S-band BLR can observe winds.

在本研究中，我们开发了一种小、轻、便携的可移动s波段边界层雷达系统。s波段BLR由天线单元、发送/接收单元、数据采集单元和数据处理单元组成。·天线单元为相控阵天线，直径为1m，增益为26dbi。·发射/接收单元的发射频率为3.05 GHz，峰值功率为500w，带宽为10mhz，占空比小于20%。·数据采集单元主要由A/D转换器和DSP（数字信号处理器）提示组成。它将接收到的信号转换成数字数据，并进行脉冲压缩和相干积分的解码。为了实时执行这些计算，数据采集单元并行使用8个DSP提示。·数据处理单元由工作站组成，控制雷达，并实时执行数据处理。通过使用工作站，可以实现无人操作，并且可以在观测的同时“快速查看”观测数据。观察的开始和停止可以使用GUI（图形用户界面）进行操作。我们在新垣MU天文台用MU雷达进行了同步观测。通过与MU雷达观测结果的对比，证实s波段BLR可以观测到风。