netd

The full field NETD of an infrared imaging system

红外成像系统中全视场的噪声等效温差

NETD is one of the earliest national development areas opened to foreign investors .

宁波开发区是中国最早对外开放的首批国家级开发区。

Research on NETD Test of Infrared Imaging Systems

红外热成像系统噪声等效温差测试研究

Analysis of Measuring Method for NETD

噪声等效温差（NETD）测试方法分析

NETD and range equation of scanning detection systems

扫描探测系统的NETD和作用距离方程

Computation of Noise Equivalent Bandpass of Infrared Imaging System with NETD and Test Data of Detector

利用NETD和探测器测试数据计算红外成像系统的噪声等效带宽

Noise equivalent temperature difference ( NETD )

噪声当量温度差（NETD）

The SNR of the thermal imaging system at different distance is calculated by using the means of NETD .

使用NETD方法对在相应条件下不同距离上的热成像系统的信噪比进行了估算。

NETD Auto-measuring of Focal - plane Thermal Imaging Systems

焦平面热像仪NETD参数的自动测量

Based on the ideal photon detector and ideal thermal detector , the relationship between NETD and NEED is studied .

针对理想光子探测器和理想热探测器，探讨了显微热成像系统的NETD和NEED的关系。

An 1R Operating Range Equation Expressed by NETD

用NETD表达的红外作用距离方程

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

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。

The experiments show that the apparatus constants greatly affect SiTF measurement , temporal NETD measurement , spatial NETD measurement and 3D noise .

试验结果表明，仪器常数对红外热像仪SiTF参数测量精度影响较大，并同时影响时域与空域NETD及3D噪声的准确测量。

Beilun Port leading to NETD , is known as both the Oriental Super Port and the Rotterdam of the East .

宁波开发区前沿的宁波北仑港，有“东方大港”和“东方鹿特丹”的美称。

Analysis of experimental data indicates that the noise equivalent temperature deference ( NETD ) of the system at room temperature ( 300K ) is about 0.2K .

该系统在室温时（300K）噪声等效温度差（NETD）达到0.2K。

When the detection range of the IR thermal imager is calculated by using NETD , the target radiation brightness difference must be calculated in the operating wave band .

在采用NETD计算红外热像仪的探测距离时，需要计算目标在热像仪探测波段范围内的辐射亮度差。

Several factors that affect the accuracy of noise equivalent temperature difference ( NETD ) are demonstrated according to the equation of NETD of the infrared imager under pulse bias .

根据处于脉冲偏置的红外热像仪的成像过程，分析了影响非致冷热像仪NETD的几个因素。

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 .

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。

According to the assessment by China 's MOFTEC , NETD is one of the areas in China that can provide the best infrastructure facilities and therefore it is an ideal place for making investment .

据中国外经贸部测评，宁波开发区是中国基础设施配套能力最强、综合投资环境最好的开发区之一。

An operating range equation of IR systems expressed by NETD was deduced , starting from a general equation for operating range of IR systems and definition of the noise-equivalent temperature difference .

从红外系统作用距离的普遍方程和等效噪声温差的定义出发，推导出用NETD表达的红外系统作用距离方程。

The practical usages of the two expressions of NETD were analyzed , according to the equation of operating range , a new equation of operating range was set up expressed by NETD , which improve the usage efficiency of infrared system .

分析了的两个表达式及其实际使用意义，结合作用距离的普遍方程建立了用NETD表示的对点源探测的作用距离方程，提高了热像仪的使用效率。

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 .

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；

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 .

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。