一种将频谱图转换为电子数据的实现方法  

A kind of method to transform spectrum diagram into electronic data

作　　者：杨华荣[1] 樊友文[1] 刘钢[1] 许荣彧[1] 

机构地区：[1]武汉第二船舶设计研究所,湖北武汉430064

出　　处：《舰船科学技术》2010年第9期80-83,共4页Ship Science and Technology

摘　　要：现有大量电磁兼容检测数据多以纸张作为载体,其关键频谱数据不能直接应用于电磁环境的预测与评估。为了解决检测报告中频谱曲线图转换为电子数据的需求,提出了一种转换方法,将传统"临摹"与计算机技术相结合,通过坐标转换技术,将屏幕坐标转换为实际坐标,再利用描点和插值算法,将频谱曲线图转换为多点频率-幅度的离散数据。依据这一原理,开发了相应的图形识别软件,经实际频谱图识别验证,幅度误差小于3 dB。The existing massive electromagnetic compatibility examination data many takes the carrier by the paper,its essential frequency spectrum data cannot apply directly in the electromagnetic environment forecast and appraisal.In order to solve in the examination report frequency spectrum diagram of curves to transform into the electronic data demand,this article proposed one transformation method,which unified the traditional copy and the computer technology to transforms the screen coordinate into the actual coordinate by coordinate transformation technology,then used traces and the interpolation algorithm to transform the frequency spectrum diagram of curves into the multi-dot frequency-scope discrete data.Based on this principle,it has developed the corresponding pattern recognition software.By validation,range error is less than 3 dB.

关 键 词：频谱图 电磁兼容 电子数据 插值算法 

分 类 号：TN03[电子电信—物理电子学]