基于微波鏈路的雷達回波雨衰訂正方法和試驗研究

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中圖分類號：TN959.4 文獻標志碼：A 文章編碼：1672-7274（2025）05-0016-03

Abstract：Mostof the weather radars used incivil aviationare C-band，therefore，toavoid the impact of raininduced echo attenuation inradar detection，usualy，the weather radar echo atenuation correction is required before used.For a civilaviation weather radar serving in Guangzhou Baiyun Airport，aradarechoatenuation correction model is formulatedbyusing the microwave linkwhichbuiltalong theradarradial，andanexperimentof heradar echo attenuation correction method ofcivil weather radar is present.Byanalyzing a cases of convective weather， the correction efect for precipitation is analyzed based onrain gauges.Therain intensity estimation result shows that the radar echo attenuation correction model based onthe microwave link is able toreconstruct the intensityofrain gauges reasonably，therefore，the methodof microwave link assted weatherradar tocorrect echoatenuation can be applied to C-band Doppler weather radarof civil aviation.

Keywords： microwave link; weather radar; radar echo attenuation correction

0 引言

民航所用氣象探測雷達多為C波段多普勒天氣雷達，因波長較短，其時空分辨率和探測靈敏度均高于S波段天氣雷達，但同時，短波長雷達在探測強降水時，會因雨致衰減而容易造成雷達回波過低，如不加以合理訂正則無法正常進行業(yè)務(wù)應(yīng)用。（剩余3289字）