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| 回波强度测量的误差因素分析及解决方法 | |
| 引用本文： | 潘新民,王全周,熊毅,芮斌,崔炳俭,.回波强度测量的误差因素分析及解决方法[J].气象与环境科学,2009,32(4):74-79. |
| 作者姓名： | 潘新民 王全周 熊毅 芮斌 崔炳俭 |
| 作者单位： | 1. 河南省大气探测技术保障中心,郑州,450003 2. 河南省气象局监测网络处,郑州,450003 3. 中国气象局,北京,100081 4. 安徽省大气探测技术保障中心,合肥,230031 5. 郑州市气象局,郑州,450005 |
| 摘 要： | 回波强度测量误差主要由雷达本身的参数(如发射功率、波束宽度、天线增益、系统损耗等)、气象因子(如折射指数、衰减系数、充塞系数等)、信号处理方法等误差引起.通过对相关雷达参数的相对误差和回波强度绝对误差曲线分析得出,雷达参数天线增益优于0.1 dB、发射峰值功率优于10%、发射频率优于0.1%、脉冲宽度优于1%、波束宽度优于0.01°时,反射率因子测量误差将＜0.8 dBz,可满足新一代天气雷达反射率因子测量误差范围在±1 dB内的技术要求. |
| 关 键 词： | 回波强度测量 雷达参数 相对误差 绝对误差 信号处理 |
Error Analysis and Correction Methods on Observations of Echo Intensity |
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| Pan Xinmin; Wang Quanzhou; Xiong Yi; Rui Bin; Cui Bingjian.Error Analysis and Correction Methods on Observations of Echo Intensity[J].Meteorological and Environmental Sciences,2009,32(4):74-79. | |
| Authors: | Pan Xinmin; Wang Quanzhou; Xiong Yi; Rui Bin; Cui Bingjian |
| Institution: | 1.Henan Provincial Atmospheric Probing Technical Support Center; Zhengzhou 450003; China; 2.Henan Provincial Meteorological Bureau Monitoring Network Department; 3.China Meteorological Administration; Beijing 100081; 4.Anhui Provincial Atmospheric Probing |
| Abstract: | Errors of echo intensity observations mainly result from parameters of radar itself,i.e.,transmitting power,beam width,antenna gain,system Loss,and meteorological factors,namely,refractive index,attenuation coefficient,full of coefficient,and method of signal processing and the like.Through the correlation radar parameter relative error and the echo intensity absolute error curve analysis,when the radar parameter antenna gain surpasses 0.1dB,the transmitting peak power surpasses 10%,the transmitting frequen... |
| Keywords: | echo intensity observation radar parameter relative error absolute error signal management |
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