PDF下载分享

[1]邵楠,步志超,李柏,等.三亚SC天气雷达强度“马赛克”问题仿真溯源分析[J].成都信息工程大学学报,2018,(02):124-128.[doi:10.16836/j.cnki.jcuit.2018.02.004]
　SHAO Nan,BU Zhi-chao,LI Bai,et al.The Reflectivity Factor Mosaic Phenomenon SimulationTraceability Analysis for Sanya SC Weather Radar[J].Journal of Chengdu University of Information Technology,2018,(02):124-128.[doi:10.16836/j.cnki.jcuit.2018.02.004]

点击复制

三亚SC天气雷达强度“马赛克”问题仿真溯源分析

成都信息工程大学学报[ISSN:1006-6977/CN:61-1281/TN] 卷: 期数: 2018年02期页码: 124-128 栏目: 电子信息科学与技术出版日期: 2018-01-31

Title:: The Reflectivity Factor Mosaic Phenomenon SimulationTraceability Analysis for Sanya SC Weather Radar

文章编号:: 2096-1618(2018)02-0124-05

作者:: 邵楠¹; 步志超¹; 李柏¹; 李喆¹; 李昭春²; (1.中国气象局气象探测中心,北京 100081; 2.海南省气象探测中心,海南海口 570203)

Author(s):: SHAO Nan¹; BU Zhi-chao¹; LI Bai¹; LI Zhe¹; LI Zhao-chun²; (1.Meteorological Observation Centre of China Meteorological Administration,Beijing 100081,China; 2.Meteorological Observation Centre of Hainan Province,Haikou 570203,China)

关键词:: I/Q信号仿真; 随机相位编码; Dual PRF技术; 强度“马赛克”

Keywords:: I/Q signal simulation; random phase encoding; dual PRF; mosaic phenomenon of reflectivity factor

分类号:: TP391.9

DOI:: 10.16836/j.cnki.jcuit.2018.02.004

文献标志码:: A

摘要:: 针对三亚SC天气雷达在台风“威马逊”中出现的回波强度“马赛克”现象,采用实验验证和仿真溯源的方法,对批式双重复频率技术(dual PRF)回波强度的影响进行分析。通过改变脉冲重复频率、脉冲累计个数、信号处理算法等方式,开展对比观测实验,真实复现“马赛克”现象,并追踪回波马赛克现象出现的天气和雷达参数条件。同时,基于天气雷达发射脉冲的时间自相关特性,采用大气分层模型,建立天气雷达发射端到接收端的I/Q信号仿真算法,通过采用端到端I/Q信号算法,结合实测数据和雷达参数情况,正演分析得到“马赛克”回波,证实了回波“马赛克”现象的成因。

Abstract:: Aiming at the mosaic phenomenon of reflectivity factor in typhoon "Johnson Weimar" of Sanya, based on the experimental validation and simulation method, the influence of the Dual PRF to the reflectivity factor is first analyzed. By changing the different PRT, accumulate number and signal processing algorithm, the mosaic phenomenon is recurrence during the experiment and the weather conditions and radar parameters are traced. At the same time, based on weather radar transmitted pulse time autocorrelation properties, using the atmospheric stratification model, the end to end weather radar I/Q signal simulation algorithm is estabilished,By using the end to end I/Q simulation methods, the mosaic phenomenon of reflectivity factor is obtained, the causes of echo "mosaic" phenomena is confirmed.

参考文献/References:

[1] 李枕,高玉春.多普勒雷达与气象观测[M].北京:气象出版社(第二版),2013.
[2] 李枕,张越.偏振多普勒天气雷达原理和应用[M].北京:气象出版社,2010.
[3] 张培昌, 杜秉玉, 戴铁丕.雷达气象学[ M].北京:气象出版社,2005:499.
[4] 李柏.多普勒天气雷达原理与业务应用[M]:北京:气象出版社,2011.
[5] Sirmans D,D Zrnic,B Bumgarner.Extension of maximum unambiguous Doppler velocity by use of two sampling rates[C].Preprints,17th Conf.on Radar Meteorology,Seattle,WA,Amer.Meteor.Soc.,1976:23-28.
[6] P JOEP,T MAY.Correction of Dual PRF Velocity Errors for Operational Doppler Weather Radars[J].J.Atmos. Oceanic Technol.2003,4(20):429-442.
[7] Zrnic D,P Mahapatra.Two methods of ambiguity resolution in pulsed Doppler weather radars[J].IEEE Trans. Aerosp. Electr. Syst.,1985:21,470.
[8] 唐瑾.脉冲多普勒天气雷达解模糊算法研究[D]:合肥:安徽大学,2006.
[9] 唐瑾,吴小培. 多普勒天气雷达的交替PRT地物滤波算法[J].雷达科学与技术,2006,3(4):177-180.
[10] 柏晓锁,朱文剑.一种改进的双重频退速度模糊方法[J].航空精密制造技术.2009,45(6):27- 44.
[11] 杨川,刘黎平,胡志群,等.C波段多普勒雷达双PRF模式速度混淆区识别和处理方法研究[J]. 气象学报,2012,(4).
[12] 楚志刚,银燕,顾松山.一种抗噪声的天气雷达速度退模糊新算法[J]. 气象学报,2013,(4).
[13] 楚志刚. CINRAD-SA多普勒天气雷达速度模糊特征及退模糊方法研究[D].南京:南京信息工程大学,2014.
[14] RVP900^TM Digital Receiver and Signal Processor[M]. Vaisala Oyj,2013.
[15] CINRAD/SA天气雷达双PRF技术I/Q信号仿真及算法对比验证[J].北京理工大学学报,2016.

相似文献/References:

[1]张伟,王本君,杨杰.国产DRSP信号处理器随机相位编码技术对比试验和效果验证[J].成都信息工程大学学报,2019,(06):587.[doi:10.16836/j.cnki.jcuit.2019.06.005]
　ZHANG Wei,WANG Benjun,YANG Jie.Random Phase Coding Technology for Domestic DRSP Signal Processor Contrast Test and Validation[J].Journal of Chengdu University of Information Technology,2019,(02):587.[doi:10.16836/j.cnki.jcuit.2019.06.005]

备注/Memo

收稿日期:2018-01-20

更新日期/Last Update: 2018-01-31