| 新疆新一代天气雷达加装带通滤波器后激励信号频谱分析 |
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| 引用本文： | 安克武,黄晓,周长江,张春雷.新疆新一代天气雷达加装带通滤波器后激励信号频谱分析[J].气象科技,2009,37(3):341-344. |
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| 作者姓名： | 安克武 黄晓 周长江 张春雷 |
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| 作者单位： | 1. 新疆气象技术装备保障中心,乌鲁木齐,830002
2. 新疆克拉玛依市气象局,克拉玛依,834000 |
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| 摘 要： | 对新一代天气雷达加装了带通滤波器前后激励信号的频谱特性进行了探讨，通过对带通滤波器的组成结构及阻抗转移函数的分析，分别对激励信号函数和响应信号函数进行傅立叶变换，求出对应的频谱函数，再与实际测量结果进行比较，发现实际带通滤波效果达到预期的目的，避免了雷达微波信号由于带宽的因素对当地其它微波设备的信号干扰。
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| 关 键 词： | 带通滤波器 阻抗转移函数 频谱图 |
| 收稿时间： | 2008/8/12 0:00:00 |
| 修稿时间： | 2008/11/7 0:00:00 |
Spectrum Characteristic Analysis of Excitation-Signals from New-Generation Weather Radar with Band-Pass Filter at Urumchi |
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| An Kewu,Huang Xiao,Zhou Changjiang and Zhang Chunlei.Spectrum Characteristic Analysis of Excitation-Signals from New-Generation Weather Radar with Band-Pass Filter at Urumchi[J].Meteorological Science and Technology,2009,37(3):341-344. |
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| Authors: | An Kewu Huang Xiao Zhou Changjiang and Zhang Chunlei |
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| Institution: | 1 Xinjiang Meteorological Information and Technology & Equip Support Center;Urumchi 830002;2 Karamay Meteorological Bureau;Xinjiang Autonomous Region;Karamay 834000 |
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| Abstract: | The frequency characteristics of excitation-signals from the new-generation weather radar at Urumchi before and after equipped with a band-pass filter are discussed,and the constituent structure and impedance transformation functions of the band pass filter are analyzed.Fourier transform is conducted on the excitation-signal function and response-signal function,respectively,to gain the corresponding frequency function,which is then compared with the measurements.It is found out that that the installation o... |
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| Keywords: | band-pass filter impedance transfer function frequency spectrum |
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