WANG Xin,ZHAO Siliang,QI Yang,et al.A Modified Algrithm of Solar Method Azimuth Beamwidth based on Weather Radar[J].Journal of Chengdu University of Information Technology,2023,38(02):154-159.[doi:10.16836/j.cnki.jcuit.2023.02.005]
基于天气雷达的太阳法方位波束宽度改进算法
- Title:
- A Modified Algrithm of Solar Method Azimuth Beamwidth based on Weather Radar
- 文章编号:
- 2096-1618(2023)02-0154-06
- Keywords:
- solar method; beam width; weather radar
- 分类号:
- TN958
- 文献标志码:
- A
- 摘要:
- 天气雷达天线性能参数是雷达常数中十分重要的一部分,直接影响雷达回波强度的测量精度。文中讨论了将太阳作为检测信号源对天气雷达天线参数测试的方法及测试步骤,并提出一种太阳法方位波束宽度修正算法。利用太阳法对一部X波段天气雷达的天线进行测试,并对比分析方位波束宽度算法改进前后对波束宽度的测量误差。实验结果表明,改进算法后,波束宽度测试结果更加稳定,且测试精度较高。
- Abstract:
- The antenna performance parameter of weather radar, an extremely significant part of radar constant, directly influences the measurement accuracy of radar echo intensity. This paper discusses a method to test weather radar antenna by using the sun as a signal source, relevant principles or methods are described in detail, and an algorithm of solar optical angular diameter is proposed. The antenna of an X-band weather radar is tested by using the solar method, and the measurement errors of the azimuth beam width of the new and old algorithms are compared and analyzed.The measurement error and accuracy of the sun method by measuring an antenna of X-band weather radar are analyzed, the results show that the antenna beam width measurement becomes more stable and the measurement accuracy shows greatly improved by using the azimuth beam width correction algorithm in the solar method.
参考文献/References:
[1] 苏德斌,孟庆春,沈永海,等.双线偏振天气雷达天线性能要求及其检测方法[J].高原气象,2012,31(3):847-861.
[2] 周红根,吴艳峰,曹德煜,等.基于太阳噪声气象雷达接收系统标定检验[J].现代雷达,2015,37(9):18-21.
[3] 周红根,高飞,蔡勤,等.CINRAD/SA 雷达标定技术研究[J].气象科技,2016(1):7-13.
[4] 胡斌,刘晓磊,余世同.CIN/CD雷达天线太阳法标校故障的分析及解决方法[J].气象水文海洋仪器,2011,28(4):115-116.
[5] 张维全,李洋,姚欣.CINRAD/SC 天气雷达系统“太阳法标校”数据修正研究[J].气象与环境学报,2009,25(1):35-39.
[6] 陆卫冬,魏旭辉.XDR天气雷达控制系统调试与天线标定方法[J].农业开发与装备,2015(9):67-69.
[7] 叶飞,肖萌,银莲,等.利用太阳法自动标定L波段探空雷达天线指向[J].气象科技,2018(3):450-454.
[8] Patel N K,Ice R L,Boydstun O E.WSR-88D ORDA Antenna Gain and Beamwidth Algorithms[C].Algorithms,G.B.2000:16.
[9] Tapping K F.The 10.7 cm solar radio flux(F10.7)[J].Space Weather,2013,11(7).
[10] Holleman I,Huuskonen A,Kurri M,et al.Operational monitoring of weather radar receiving chain using the sun[J].Journal of Atmospheric and Oceanic Technology,2010,27(1):159-166.
[11] Altube P,Bech Joan Argemí,et al.Quality control of antenna alignment and receiver calibration using the sun: adaptation to midrange weather radar observations at low elevation angles[J].Journal of Atmospheric & Oceanic Technology,2015,32(5):494-496.
[12] Reimann J,Hagen M.Antenna pattern measurements of weather radars using the sun and a point source[J].Journal of Atmospheric & Oceanic Technology,2016,33(5).
[13] Ice R J,Heck A K,Cunningham J G,et al.Polarimetric weather radar antenna calibration using solar scans[J].In Proceedings of the AMS Annual Meeting, Phoenix,2015(6).
[14] 邵楠,潘新民,陈玉宝,等.利用太阳法提高新一代天气雷达探测精度[J].气象科技,2018,46(6):1065-1072.
[15] 徐鹏.基于太阳噪声的雷达天线测量方法研究[D].哈尔滨:哈尔滨工业大学,2013.
备注/Memo
收稿日期:2022-06-08
基金项目:重庆市气象部门青年基金资助项目(QNJJ-202202)