空间噪声等效温差测试方法研究  

Test Method of Spatial Noise Equivalent Temperature Difference

作　　者：乐丽珠 陆正杰[2] 王小凤[2] 于闻 杨帆[1] 张成[1] 

机构地区：[1]昆明物理研究所,云南昆明650223 [2]西北大学信息科学与技术学院,陕西西安710127

出　　处：《红外技术》2016年第6期519-523,共5页Infrared Technology

摘　　要：噪声等效温差(NETD)是热像仪主要性能参数之一。对空间噪声等效温差(spatial-NETD)的测试方法进行研究,完善空间噪声等效温差测试技术,并对测试结果进行分析比较,指出空间噪声等效温差测试的重要性,为空间噪声等效温差在热像仪性能测试中的应用提供依据。Noise Equivalent Temperature Difference （NETD） is one of the signs of infrared thermal imaging system performance index. In this paper, Spatial Noise Equivalent Temperature Difference （S-NETD） was studied, the testing technology of S-NETD was improved, the test results were compared, and the importance of the test of S-NETD was pointed out. The basis for the application of S-NETD in the thermal imager performance test is provided.

关 键 词：噪声等效温差 时间噪声等效温差 空间噪声等效温差 信号传递函数 

分 类 号：TN216[电子电信—物理电子学]