In order to satisfy the requirement that the vehicular electro-optical reconnaissance sys-tem can quickly share target information to relevant auxiliary weapon system real-timely in wild environment,a method for sharing target information of different photoelectric platforms,as well as the error analysis of this method are presented.By introducing the informations such as the attitude angle of auxiliary weapon platform and the attitude angle of EO reconnaissance plat-form,the method can transmit the target information detected by EO reconnaissance system to auxiliary weapon system precisely in real time.In order to verify the correctness of the method, through the modeling analysis,it is concluded that the method can realize the sharing of target information.The error of the method is analyzed by simulation test,results show that the target information after conversion by the method can improve by about 3.5 min terms of accuracy compared with the direct use of the collected target information.

In order to satisfy a certain vehicle product's demand of overlaying characters, this paper introduces the structure design based on MB90092 and gives the hardware circuit design and software programming of the system after analyzing the fundamental of video display metafile and several schemes of OSD system. The application results show that the system is stable and reliable. Given its good synergistic effect, the system can be used for engineering applications.

A system for detecting the parallelism of multi-channel optical axes was introduced,and a collimator was used in the system to provide an infinite target.Based on CCD image acquisition and processing and computer technique,the parallelism errors among the infrared axis,visible axis and the laser axis were calculated by calculating the pixels span in the CCD between the target cross center and the laser spot center.Result shows that the calculation error of the system is less than 5 ″.

Based on the optical image de-rotation implemented by the transmission mechanism of a panoramic observation sight,the advantages and weaknesses of traditional optical de-rotation methods were analyzed.By simplifying the mechanism,the mathematical model of the controlled object was established.According to the system requirements of real-time controlling and processing,the digital-analog control hybrid circuits were designed,which improved the stability and reliability of the system.A typical instance of the control system was simulated with MATLAB/SIMULINK,the results show that the electric circuit can meet the requirements of stability and real-time processing.

In Order to eliminate gear transmission shortcomings,proposes the use of position control to realize the extinction white light aiming channel as spin.Based on the systematic like tilt index requirement,design digital control circuits,take PID control algorithm by software design,and the application experiment.The experimental results show that the design meets design requirements,with high precision and reliability of servo effect is small,etc.

Based on the concept of precise attack and the factors which affect its implementation,the functions of ground reconnaissance in precise attack were described.The requirements for the ground reconnaissance system in future ground combat were analyzed,and the key technologies related to these requirements were described also.

Aimming at noise characteristic of inertial platform,the active disturbance rejection control algorithm for inertial platform tracking circuits is presented.This method,which possesses characteristics like high robustness,high quickness,high precision and easy to use,have no use of precise math model of the system.Simulation and experimental results show that ADRC method is a ideal controller applied to pratical plat system,which has advantages of short transfer time and high disturbance rejection ability.

介绍了基于TMS320DM642的图像处理系统,给出了系统的输入输出及数据处理部分的设计。利用TMS320DM642提供的专用视频端口通过EDMAs传输数据使视频的获取及输出变得非常简单,同时TMS320DM642支持的视频驱动IOM设计模式大大简化了视频输入输出驱动设计的工作量,设计简单、设计周期短,是图像处理系统较为理想的选择。

Based on the analyses of the mathematical model of the inertial platform stabilization loop,an improved linear quadratic Gaussian(LQG)control method for stabilization servo circuits is put forward to overcome the disturbance from the platform.An integral element is introduced into the feedback to eliminate the stabilization error.According to the criterion of the filter convergence,the state is estimated by using Sage-Husa adaptive filtering algorithm and strong tracking Kalman filter respectively to ensure the state estimation accuracy and the tracking capability of unexpected state.The simulation and experiment indicate that improved LQG control method is accurate and capable of anti-jamming,and it relieves the accuracy requirement for the system model and noise statistical characteristics.

The high strength, radiation hardness and cost-effectiveness make Germanium the substrate of choice for high-efficiency multi-junction solar cells for space applications. Numerical modeling and large-scale simulation are important and indispensable tools in the analysis and development of crystal growth process. In this study, germanium single crystals with low dislocation density were produced by Czochralski method by applying the necking technique. Chemical etching pits method was used to measure the dislocation density, and a professional modeling software CrysVUn was used to obtain the thermal-stress distribution. The results show that the thermal-stress of the sample with diameter of 15 mm is nearly equal to that of other samples, so the thermal-stress does not influence the dislocation multiplication. Based on the result, the dislocation density must be strangely increased caused by gravity.

The professional modeling software package CrysVUn was employed to study the process of a large sapphire single crystal growth using Kyropoulos method. The influence of gas pressure on thermal field, solid-liquid interface shape, gas velocity field and von Mises stress were studied for the first time. It is found that the root of the seed melt when gas pressure equals to one atmosphere or more than one atmosphere, especially during the seeding period, this result is consistent with the experimental observation, and this paper presents three ways to solve this problem. The temperature gradient and stress decreases significantly as the gas pressure increases. The convexity of the solid-liquid interface slightly increases when the gas pressure increases. Numerical analysis was used to optimize the hot zone design.