噪声等效温差

噪声等效温差（NETD）测试方法分析

Analysis of Measuring Method for NETD

提出了一种基于噪声等效温差（NETD）和灰度最小方差的红外焦平面阵列无效像元检测方法。

A method of IRFPA non-effective pixel discrimination based on NETD and gray minimum variance is put forward .

工作波段为8～12μm，热阻达107K／W量级，噪声等效温差为0.1K。

The operation wavelength region of 8 ￣ 12 μ m is achieved , with the thermal resistance of 10 7K / W order and the noise equivalent temperature difference of 0 1K .

在积分时间为4毫秒及镜头为F/1条件下，器件噪声等效温差为0.1K。

The noise equivalent temperature difference of 0 . 1 K was obtained with a F / 1 optics and integrated time of 4 ms.

从响应度、噪声等效温差NETD以及归一化探测度三个方面的因素分析了制造研究探测源应注意的问题，并且讨论了怎样选取合适的热释电材料。

From responsibility , NETD and normalized detect degree , the issues paid attention on in the fabrication is analyzed and the way how to choose the proper pyroelectric material is given .

红外成像系统中全视场的噪声等效温差

The full field NETD of an infrared imaging system

红外热成像系统噪声等效温差测试研究

Research on NETD Test of Infrared Imaging Systems

大面阵非制冷红外热像仪的噪声等效温差精度分析

Accuracy Analysis of Noise Equivalent Temperature Difference of Large-Array Staring Uncooled Focal Plane Array

噪声等效温差是衡量红外探测器系统性能的重要指标之一。

It is helpful to the performance improvement , cost reduction and production periode shortening of infrared systems .

显微热成像系统的噪声等效温差和噪声等效辐射率差模型及其分析

Study on the Noise Equivalent Temperature Difference and Noise Equivalent Eradiation Difference Mathematical Models for Micro Thermal Imaging Systems

根据技术指标的要求，对噪声等效温差、最小可分辨温差等主要参数进行了详细的分析与计算，证明了红外热成像系统设计的合理性。

According to the request of the technique , the main parameters of noise equivalent temperature difference and minimum resolvable temperature difference were analysed and calculated . It proved the design of infrared imaging system was reasonable .

本文系统地讨论了红外整机各部分调制传递函数的表达式（特别是列阵探测器的调制传递函数的表达式）以及机载热成象系统的噪声等效温差和最小可分辨温差的表达式。

This paper gives a systematic discussion on the formulae of modulate transfer functions ( MTF ) of infrared system ( including the detector array ), noise equivalent temperature difference ( NETD ) and minimum resolvable temperature difference ( MRTD ) for airborne thermal imaging system .

非致冷双材料室温红外探测器具有高响应率和低噪声的特点，噪声等效温差接近理论极限。

Uncooled bi-material infrared detectors have the potential of approaching the theoretical limit of noise equivalent difference in temperature because of its high sensitivity and low noise .

将扫描探测系统视为对比度探测系统，考虑到信号处理系统的影响，推导了探测器噪声限下扫描探测系统对扩展源的噪声等效温差和对点源目标的作用距离方程；

Taking Scanning Detection Systems ( SDS ) as detection systems of contrast , under detector noise limited circumstances , and considering the effects of signal processors , the NETD for extended sources and the range equation for point source targets of SDS were derived .