新一代天气雷达(CHINRAD_SC)脉宽调制器仿真分析  

Simulation Analysis of New Generation Weather Radar(CHINRAD_SC)Pulse Width Modulator

作　　者：刘宗庆 王杰 赵福燕 王敏 LIU Zhongqing;WANG Jie;ZHAO Fuyan;WANG Min(Sichuan Provincial Atmosphere Observation Data Centre,Chengdu 610071,China;Heavy Rain and Drought-flood Disaster in Plateau and Basin Key Laboratory of Sichuan Province,Chengdu 610071,China)

机构地区：[1]四川省气象探测数据中心,四川成都610071 [2]高原与盆地暴雨旱涝灾害四川省重点实验室,四川成都610071

出　　处：《系统仿真技术》2020年第2期107-113,共7页System Simulation Technology

基　　金：四川省山洪地质灾害防治气象保障工程2016年建设项目(TB601_SHTC_2016)。

摘　　要：脉宽调制器是新一代天气雷达伺服系统中重要组成部件,文章以分析新一代天气雷达伺服系统中采用的脉宽调制器电路特性为目的,通过运用Multisim软件对脉宽调制器电路进行仿真,分析了其中的三角波发生器、正负零电位、比较器等重要电路的特征波形。通过仿真实验可直观形象地描述电路的工作特性,有利于系统地研究该电路的构成及电路的工作特点,仿真分析实验验证了该脉宽调制器重要节点信号指标,利用该仿真结果,可以为天气雷达技术保障人员在雷达实际维护中提供理论支撑,并为进一步改进提供理论分析基础。The pulse width modulator is an important component in a new generation of weather radar servo system.In this paper,the purpose of analyzing the characteristics of the pulse width modulator circuit used in a new generation of weather radar servo system is to simulate the pulse width modulator circuit by using Multisim software,The characteristic waveforms of the triangular wave generator,positive and negative zero potential,comparator and other important circuits are analyzed.Through the simulation experiment,the working characteristic of the circuit can be vividly described,which is conducive to the systematic study of the circuit structure and the characteristics of the circuit.The simulation analysis experiment verifies the signal index of the important node of the pulse width modulator.Using the simulation result,Weather radar technical support personnel in the actual maintenance of radar play a theoretical support role,and provide a theoretical basis for further improvement.

关 键 词：新一代天气雷达 伺服系统 脉宽调制器 三角波发生器 仿真分析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]