基于微波鏈路的雷達(dá)回波雨衰訂正方法和試驗(yàn)研究
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中圖分類號(hào)：TN959.4 文獻(xiàn)標(biāo)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(cè)雷達(dá)多為C波段多普勒天氣雷達(dá)，因波長(zhǎng)較短，其時(shí)空分辨率和探測(cè)靈敏度均高于S波段天氣雷達(dá)，但同時(shí)，短波長(zhǎng)雷達(dá)在探測(cè)強(qiáng)降水時(shí)，會(huì)因雨致衰減而容易造成雷達(dá)回波過低，如不加以合理訂正則無法正常進(jìn)行業(yè)務(wù)應(yīng)用。（剩余3289字）