承德CINRAD（CB）天氣雷達兩次外界信號干擾處置過程分析

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摘要：結(jié)合新一代天氣雷達工作原理和信號傳輸流程，利用臺站現(xiàn)有方式對雷達自身和外界干擾源進行初步判斷，明確了2019年至2021年間承德天氣雷達站出現(xiàn)的異?；夭ň鶠楦浇さ厮跛褂玫臒o線網(wǎng)橋監(jiān)控信號干擾所導致，通過對處置過程的總結(jié)分析，可為從事天氣雷達保障工作的同行提供參考借鑒。

關(guān)鍵詞：天氣雷達；信號流程；異?；夭ǎ桓蓴_源

中圖分類號：TN974文獻標識碼：A

Analysis of Two External Signal Interference Disposal

Processes of Chengde CINRAD/CB

Jin Long Wang Shuofei Yang Leibin Sun Bobo Yao Luntao

1.Hebei Provincial Meteorological Technical Equipment CenterHebeiShijiazhuang050000；

2.Chengde Meteorological BureauHebeiChengde067000；

3.Nanjing NRIET Industrial CO.，Ltd.JiangsuNanjing211100

Abstract：Combined with the working principle and signal transmission process of CINRAD/CB，the existing mode of the station is used to preliminarily judge the radar itself and external interference sources.It is clear that the abnormal echo of Chengde weather radar station from 2019 to 2021 is caused by the interference of the wireless bridge monitoring signal used by the tower crane at the nearby construction site.Through the analysis of the disposal process，It can provide reference for colleagues engaged in radar technical support.

Keywords：weather radar；signal flow；abnormal echo；jamming source

新一代天氣雷達通過電磁波對云雨等目標物的探測，已在臺風、暴雨和強對流等災害性天氣的監(jiān)測、預警、預報和氣象災害防御過程中發(fā)揮了不可替代的作用［1-3］，隨著社會經(jīng)濟的發(fā)展，電子設備工作領域和工作方式的增多，使得無線射頻信號在近十年內(nèi)對氣象雷達的影響越發(fā)嚴重，已引起氣象學界的特別關(guān)注。（剩余5204字）