Abstract:Artificial neural network and its application in near infrared spectroscopy are presented in brief. The basic structure of the BP network and its corresponding BP algorithm are given. The obvious superiority of the artificial neural network BP algorithm is shown through the determination of the fluidity of lubricating-oil and the recovery and RSD of benzene and methylbenzene. Finally, several existing problems are indicated.

Abstract:In this paper, the current status of stealthy technology and infrared stealthy technology are presented, the features of turbofan engines and their superiority in the infrared stealthy of aircrafts are described in detail and the application prospect of the turbofan engines on stealthy aircrafts is analyzed.

Abstract:Aiming at the serious threat of precision guided weapons to our military targets and the deficiency of the traditional camouflage equipment, an idea of changing the optical image signatures of targets by changing their surface reflection and emission characteristics hence to avoid the detection and tracking by the precision guided weapons is proposed. The concept of optical dynamic camouflage is described, the visible and infrared dynamic techniques are presented and the conclusion that the optical dynamic camouflage is becoming an important aspect of the stealth and camouflage is given.

Abstract:On the basis of the ballistic characteristics of tactical missiles, a fact that the detection of their strong plume in boost phase is the main infrared warning means is indicated. The operation principle of the DSP of the United States of America is presented and the establishing method of an early warning model is given.

Abstract:The meaning and method for studying their background in midcourse is described in brief. the infrared radiation of ballistic missile targets and The foreign research background, the current status at home and the development trend of the research are mainly presented. Finally, the key technologies for studying the infrared radiation characteristics of ballistic missile targets and their background in midcourse are analyzed and some suggestions are made on speeding up the development step in this field.

Abstract:用惠更斯作图法推导光轴在入射面内的正单轴晶体e光全反射角公式：i=arcsin 1/n√（n^2e-n^2o）sin^2α＋n^2o,它与光轴在入射面内的负单轴晶体e光全反射角公式形式完全相同；所以光轴在入射面内的单轴晶体e光全反射角公式为i=arcsin 1/n√（n^2o-n^2e）cos^2α＋n^2e=arcsin 1/n√（n^2e-n^2o）sin^2α＋n^2o（简称“何波公式”）。

Abstract:In this paper, the application of preprocessing methods in near infrared spectral data processing is presented and the particular preproeessing parameters are discussed through the example of milk. The predicted errors of the fat and protein content in milk are 0.1g/dl - 0. 3g/dl. The measurements have a good eorrelativity with the reference values. The experiment results have shown that the preprocessing method can play an important role in the optimization of models and is of great reference value to the establishment of milk models.

Abstract:In this paper, the composition of an on-line near infrared spectral analysis system, the development of the technique and its application in food processing, agriculture, classification of demolition waste, petrochemical industry, pharmacy and medicine are presented. The near infrared spectral analysis technique can be used to simultaneously analyze multicomponent samples without the pretreatment of samples. Because of the use with optical fiber, it has been used widely in process analysis. The on-line near infrared spectral analysis technique has a trend to customization and miniaturization.

Abstract:Application of the infrared temperature measurement technique in temperature monitoring of float glass is presented. An on-line system for monitoring the temperature of the glass sheet in an annealing lehr is designed. The factors and errors which affect the temperature precision of the glass sheet in an annealing lehr is analyzed.

Abstract:本文报导“可变空间分辨率”焦平面列阵在设计和应用上所取得的进步，并给出大规格成像器及其应用的一些特例。这些器件可同时满足三个要求，即覆盖一个宽阔的总视场，在所关心的目标上保持尽可能高的空间分辨率，以尽可能高的帧速率操作。在保持高空间分辨率的情况下，成像器样机的帧速率可达每秒数千帧。这些样机是作为可见光成像器而进行工作的，美国空军研究实验室和Nova Biomimetics公司目前正在把这种技术向红外领域转移。本文重点介绍这种技术的应用，并给出用这种系统拍摄的一些图像。

Abstract: