红外系统NETD测试对比与分析  

Comparison and Analysis on NETD Testing of Infrared System

作　　者：魏东[1] 徐世伟[1] 王大鹏[1] 

机构地区：[1]光电信息控制和安全技术重点实验室,河北燕郊065201

出　　处：《光电技术应用》2012年第6期38-41,共4页Electro-Optic Technology Application

摘　　要：指出传统NETD测试中的不足之处,并加以改进。提出实验室条件下基于数字图像的精确测量方法,并对测试结果进行修正。对测试得到的两组数据进行对比分析,指出该方法更加准确地反映出红外系统的NETD。The disadvantages of traditional noise equivalent temperature difference （NETD） test method are pointed out and improved by using relative measures. The accurate measurement methods based on digital imag-es in presented laboratory conditions are proposed. And the test results are regulated. Two sets of tested data are compared and analyzed. As a result, NETD of infrared systems can be measured more accurately.

关 键 词：噪声等效温差 传递函数 标准偏差 

分 类 号：TP334.22[自动化与计算机技术—计算机系统结构]