无线电频率干扰下高能射线成像畸变分析与测试  

Analysis and measurement of high energy radio-graphic imaging distortion under radio frequency interference

作　　者：陈雷[1] 赵福伟 CHEN Lei;ZHAO Fuwei(Haibin College,Beijing Jiaotong University,Huanghua Hebei 061199,China;Hebei University of Water Resources and Electric Engineering,Cangzhou Hebei 061001,China)

机构地区：[1]北京交通大学海滨学院,河北黄骅061199 [2]河北水利电力学院,河北沧州061001

出　　处：《激光杂志》2019年第12期85-89,共5页Laser Journal

基　　金：河北沧州2018年科学计划自筹经费项目(No.183305004)

摘　　要：为了解决传统成像畸变分析方法存在的分析准确率低的问题,提出无线电频率干扰下高能射线成像畸变分析方法。设计高能射线成像畸变分析方法,在无信号干扰的环境下采集标准的高能射线成像数据,以此作为观测无线电干扰频率的标准。分别从定位干扰源位置、计算无线电干扰距离和判定干扰频率强弱三个方面,实现无线电干扰频率的观测。建立无线电干扰射线成像模型,并在该模型下输出成像畸变分析结果,即成像畸变类型和成像畸变量。为了验证高能射线成像畸变分析方法的有效性,设置测试实验,经过测试实验得出结论:与传统的成像畸变分析方法相比,设计的无线电频率干扰下高能射线成像畸变分析方法的准确率提升了19.85%。In order to solve the problem of low accuracy of traditional imaging distortion analysis methods,a method of high energy radio-graphic imaging distortion analysis under radio frequency interference is proposed.The distortion analysis method of high energy radiography is designed,and the standard high energy radiography data are collected in the environment without signal interference,which can be used as the standard for observing the frequency of radio interference.The observation of radio interference frequency is realized from three aspects:positioning the interference source,calculating the distance between radio interference and judging the intensity of interference frequency.The radio interference radiography model is established,and the imaging distortion analysis results,that is,the imaging distortion type and imaging distortion variables,are output under the model.In order to verify the effectiveness of the high energy radio-graphic imaging distortion analysis method,a test experiment is set up,and the conclusion is drawn after the test experiment:compared with the traditional imaging distortion analysis method,the accuracy of the designed high energy radio-graphic imaging distortion analysis method is improved by 19.85%under the interference of radio frequency.

关 键 词：无线电 频率干扰 高能射线 射线成像 畸变分析 

分 类 号：TN949[电子电信—信号与信息处理]