新型光纤温度测量系统信号的仿真研究  

Study on Signal Simulation of a Novel Optical Thermometer

作　　者：刘静[1] 

机构地区：[1]燕山大学电子实验中心,河北秦皇岛066004

出　　处：《节能技术》2005年第6期567-569,共3页Energy Conservation Technology

摘　　要：介绍了用小波阈值滤波对光纤温度测量系统信号进行仿真的方法。该方法基于信号和白噪声在小波变换下具有不同的特性,将含噪信号进行多尺度小波分解,采用软阈值方法将其高频部分进行量化处理,再进行重构。实验证明该方法有效去除了信号中的噪声,方便地用软件实现了比色测温信号的处理,提高了系统的测温精度。Signal simulation of a novel optical thermometer is introduced in this paper. This technique is based on the fact that the character of signal and white noise are different during wavelet transform. The signal with noise is discomposed to get wavelet of various scales and the section of high frequency is processed in quantity by soft threshold to get it reconstructed. The experiment indicates that this technique can remove the noise of signal and it is easy to conduct processing of color comparison signal with software to promote sensitivity of the whole system.

关 键 词：光纤测温仪 小波变换 阈值滤波 

分 类 号：TK113[动力工程及工程热物理—热能工程]