CAJ | 학술논문

雷达硬件故障直接影响数据质量，故障数据进入共享系统后不但影响本地预报员对天气系统的分析和判断，对国家级业务系统也会产生严重影响。目前，对雷达资料的数据质量控制主要针对非气象回波，对于雷达硬件故障导致的数据错误还缺乏有效的质量控制方法。该文对河北省石家庄 CINRAD／SA 雷达2004—2013年硬件故障时的基数据和回波特征进行分析，研究雷达故障导致的数据错误与故障类别的相关性及对数据和回波的影响。结果表明：雷达硬件故障导致的数据错误对基数据的完整性、数据位置和强度信息产生影响，发射机和接收机系统故障主要影响雷达数据的强度信息；伺服系统故障主要影响数据的位置信息。提出通过对雷达数据完整性和位置信息的检查，根据硬件故障影响雷达回波形态、位置、范围和强度等图像特征，利用基于模糊逻辑自动识别雷达硬件故障导致的错误数据的质量控制方法。利用石家庄雷达站2004—2013年雷达故障数据进行了识别效果检验，对故障数据的总体识别率超过90％，能较好实现对硬件故障导致的数据错误质量控制，是现有雷达运行正常情况下针对非气象回波的雷达数据质量控制方法的补充。
뢰체경건고장직접영향수거질량，고장수거진입공향계통후불단영향본지예보원대천기계통적분석화판단，대국가급업무계통야회산생엄중영향。목전，대뢰체자료적수거질량공제주요침대비기상회파，대우뢰체경건고장도치적수거착오환결핍유효적질량공제방법。해문대하북성석가장 CINRAD／SA 뢰체2004—2013년경건고장시적기수거화회파특정진행분석，연구뢰체고장도치적수거착오여고장유별적상관성급대수거화회파적영향。결과표명：뢰체경건고장도치적수거착오대기수거적완정성、수거위치화강도신식산생영향，발사궤화접수궤계통고장주요영향뢰체수거적강도신식；사복계통고장주요영향수거적위치신식。제출통과대뢰체수거완정성화위치신식적검사，근거경건고장영향뢰체회파형태、위치、범위화강도등도상특정，이용기우모호라집자동식별뢰체경건고장도치적착오수거적질량공제방법。이용석가장뢰체참2004—2013년뢰체고장수거진행료식별효과검험，대고장수거적총체식별솔초과90％，능교호실현대경건고장도치적수거착오질량공제，시현유뢰체운행정상정황하침대비기상회파적뢰체수거질량공제방법적보충。
Radar hardware fault affects data quality directly.Erroneous data not only affect local forecaster ana-lyzing weather,but also have serious influence on the running of national operation system.So far,study on radar data quality control mainly aims at non-meteorological echoes,such as ground clutter,sea clutter, electromagnetic interference and so on.There isn’t enough effective quality control method for erroneous data generated by hardware fault.Through analysis on the integrity of base data,position information and characteristic of hardware fault echoes,the correlation between erroneous data and fault category,and effects of different fault on data and echoes are studied.A quality control method is provided. <br> Erroneous data generated by radar hardware fault affect integrity of base data,position and intensity information of echoes.There is some difference among different type hardware fault or part of radar. Transmitter and receiver system fault mainly affect the intensity information.Servo system fault mainly af-fect position information and the integrity of date.Through checking base data integrity and echoes posi-tion information,fault data generated by servo system can be identified.The radar intensity information af-fect image feature such as shape,range and intensity.The error intensity information data generated by radar hardware fault can be controlled through fuzzy-logical principle,and identified through comparing parameters such as radar echoes area,mean absolute difference of intensity,the degree of intensity change,and image correlation coefficient with neighboring normal data.There is some difference between different parts of radar or different kinds of hardware fault.It is impossible to identify all erroneous data only by one method.In the actual work,it is necessary to combine status and alarm information,and ap-ply multiple means to check radar data step by step.Only in this way,erroneous data generated by hard-ware fault can be effectively and comprehensively controlled. <br> A test on erroneous data generated by hardware fault of Shijiazhuang radar site from 2004 to 2013 is carried out,and the identification ratio is above 90%.It is supplement for the existing quality control methods which mainly aim at non-meteorological echoes when radar operate normally.The proposed algo-rithm is mainly based on the intensity and position information,and the quality control method on velocity and spectral width error generated by hardware fault should be further studied.