单通道防空导弹电子稳像过程中的噪声分析及处理  

Noises Analyzing and Processing for Digital Image Stabilization in Single Channel-Controlled Air Defense Missile

作　　者：朱华勇[1] 卜彦龙[1] 沈林成[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院

出　　处：《兵工自动化》2010年第8期7-9,12,共4页Ordnance Industry Automation

基　　金：国家安全重大基础研究项目(6138101001);湖南省自然科学基金(07JJ3127)

摘　　要：针对单通道防空导弹电子稳像过程中的噪声干扰问题进行研究。通过对各种成像噪声成因、特性的分析,首先将闪烁噪声和抖动噪声分别进行建模,随之建立了含噪声稳像模型。基于该模型提出了基于小波滤波与加权平滑的去噪处理方法,利用小波保持时域局部特性的优点达到去噪。仿真实验表明,该方法能够有效去除影响稳像的成像噪声。Noise processing method in the course of digital image stabilization for single channel-controlled air defense missile was studied.Through analyzing the reason and characteristics of image noise,firstly model of glint noise and fluctuating noise was established based on the analysis of basic process of missile digital image stabilization,afterward,image stabilization model on the consideration of imaging noises was constructed.On the basis of the model,denoise algorithm based on the wavelet was proposed,through which local characteristic of signal was kept and imaging noise was cut down effectively.Simulation experiment validates the algorithm can effectively cur down noise.

关 键 词：导弹电子稳像 成像噪声 小波 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] V241[自动化与计算机技术—控制科学与工程]