大直径的激光扫描在线动态测量系统

基于激光扫描测量原理 ,提出了一种大直径的激光扫描在线动态测量系统 ,简述了系统的测量原理 ,从系统设计和提高系统的测量精度出发 ,对系统的扫描速度特性和光学准直特性进行了理论分析 ,并通过实验对测量系统的精度进行了验证     

基于蛙跳式坐标变换原理的火炮零部件变形量测量技术

针对火炮零部件变形量进行测量时存在着结构复杂、几何尺寸范围大等特点，基于蛙跳式坐标变换原理、柔性三坐标测量原理、移动式测量基座技术和计算机实时控制与数据处理技术，提出了一种用于火炮零部件变形量测量的方法，并研制了测量系统．还建立了相应的数学模型，通过实际测量对测量系统的精度进行了验证．测量结果表明，测量系统精度能够满足火炮零部件变形量的测量精度要求，该测量方法是切实可行的．     

鱼雷辐射磁矩测量误差研究

基于鱼雷辐射电磁场测量方法，建立了磁矩测量误差的数学模型，并在此基础上利用MATLAB计算了各相关因素对测量误差的影响，提出了测量传感器尺寸和测量距离的选择原则，分析了磁矩测量误差与测量距离、传感器长度以及传感器直径的关系，得到了一定测量条件下测量误差相对于各因素的变化曲线，从而有助于选用合适的测量传感器尺寸和确定适当的测量位置，可以有效地减小磁矩测量的误差，旨在为鱼雷电磁场系统参数测量设备的设计提供参考。     

光学瞄具出瞳直径、出瞳距离与放大率现代测试技术研究

针对光学瞄具出瞳直径、出瞳距离与放大率的现代测试要求，在分析原有传统的各种检测原理与方法的基础上，本系统采用了一种基于CCD摄像技术、精密机械技术、光学技术和计算机控制与图像处理技术的现代光学测试原理与方法。测试过程中采用CCD细分技术，提高了图像的分辨率和目标图像的定位精度。出瞳直径与出瞳距离测试精度达到0.01 mm，测试范围为1～100mm，放大率测试精度小于1%，而且大大减轻了疲劳强度。     

基于PSD的弹丸膛内运动姿态测量系统研究

阐述了利用光电位置敏感传感器、半导体激光器、高速数据采集卡及计算机系统设计开发弹丸膛内运动姿态测量系统的体系结构和工作原理。研究了基于PSD的能直接在野外靶场试验使用的弹丸膛内运动姿态测量系统技术方案，研制了测量系统样机，并进行了系统的射击试验验证，给出了某火炮的靶场试验处理结果。试验结果表明，该系统具有测量精度高、测量处理速度快、自动化程度高、安装调试简单等优点。     

测温及其修正电路测试系统的软件设计

提出了一种基于IJabwindows／CVI的某空空导弹惯性测量单元（IMU）测温及其修正电路测试系统的实现方法，分析了系统的总体构成及其测量原理、系统软件设计与数据处理。同时针对系统要求，对静态显示控件（GRAPH）进行编程，实现了动态显示当前以及历史数据随时间变化曲线，利用DDE技术实现对EXCEL的通信，从而将测试结果直接输出到EXCEL中，实现格式化文档输出。     

冲击波壁面反射压カ的压杆测试法

为测量爆炸容器壁面反射压力，设计了一种压杆测压系统，对应力波在压杆中的传播进行了数值模拟，分析了压杆测压系统的频响、可测量下限和有效测量时间。对于直径为8 mm的钢质压杆系统，其频响约为115 kHz，使用电阻应变片可测量下限约为3.6 MPa．将压杆测压系统成功应用于小比距离爆炸冲击波测试，获得了较理想的结果，测量最大压力约1.2 GPa．研究表明压杆测压是一种原理简单、量程大、频响高、成本低、抗干扰能力强的方法，可用于爆炸近区壁面反射压力测试。     

反射式激光扫描检测系统研究

基于激光扫描检测原理和光电传感技术,提出了一种反射式激光扫描检测系统,其扫描光学系统采用抛物面反射镜,解决了较大尺寸的测量问题.文中详细论述了系统的检测原理、总体结构及数据处理系统.通过实验对系统的测量精度进行了验证,结果表明系统测量精度达±0.01mm.     

相关分析技术在光幕靶速度测量中的应用

论述了利用相关信号处理技术测量弹丸速度的原理，分析了数字采样的周期对测量误差的影响。为了用较低的采样频率获得同样的测量精度，对计算得到的互相关函数进行多项式拟合。通过计算机仿真和实弹实验对所提方法进行验证，结果表明，该方法的测量精度与基于测时仪构成的测速系统相同。     

大直径圆柱齿轮的测量

主要介绍了模数在m=2．5～20mm、分度圆直径在d=650～2500mm的大直径圆柱齿轮的测量目的、测量原理、测量方式。     

Stability of the Third Generation Intensifier under Illumination

The stability under illumination of transmission-mode GaAs photocathode sealed in the third generation intensifier is investigated by use of spectral response testing instruments. The variations of spectral response with the illumination times under weak and intense illumination are compared. The variations of photoemission performance parameters are also characterized. The results show that during initial several weak illuminations photocathode behaves no evident decay and a maximum sensitivity is achieved, while under intense illumination the sensitivity of photocathode begin to decrease largely at the first illumination. The calculated performance parameters show that the variation of surface escape probability with illumination times is a direct cause of instability of photocathode. It is also found that under intense illumination peak wavelength is moved towards short-wave and peak response is decreased, which shows that the ability of long-wave response of photocathode is decreased.     

Expert Systems Aimed at General Design of Projectiles

Expert systems aimed at the general design of projectiles can implement a series of intelligent designs, such as the design of HE shell, the scheme expounded and proved, the emulation analysis and calculation, etc. Aiming at the product design feature, the expert system adopts the object-oriented knowledge representation and all kinds of inference control engines to describe and reason the relevant knowledge regarding the product through the microcomputer. It embodies the foundation of emulation analysis and simulated manufacturing of the shell. It makes use of the method that knowledge expression is combined with condition of inference to carry out the overall design and emulation and reference.The paper gives the ways through which the functions can be achieved, gives the modularization of reference and the design methods of systematization, puts forward the method of knowledge expression and working interface, and supplies a platform for similar products of the shell category that can be quickly designed.     

Parameter Identification for the Valve Control Cylinder System of a Hydraulic Manipulator

In mechanical, hydraulic and electronic systems, the determination of system parameters is often challenging because liquid parameters often change significantly, due to variations in working and environmental conditions. Therefore, it is of significant practical importance to identify those parameters through experimental procedures. A systematic approach to identifying parameters in the valve controlling cylinder system of hydraulic manipulators is provided. It first derives the transfer function of the system, and then uses P control of PID control to predict system parameters. The predicted parameters are further validated using PID control. The prediction through simulation using MatLab language is utilized, which agrees well with experimental results.     

Three-dimensional Numerical Simulation of Combustion Field in the Combustion Chamber

In order to study the effect of rotation on the combustion in the underwater vehicle, a two-phase turbulent combustion process is described with Reynolds stress turbulence model, eddy-dissipation turbulent combustion model, P-1 radiation model and particle tracking model of liquid. The flow in the rotating combustion chamber is simulated at two different working speeds, 0 r/min and 1 000 r/min by Fluent software. The temperature, gas velocity, static pressure of wall and fuel concentration are computed and compared. The results show that the combustion in rotating combustor is faster and more effective.     

Software Communication Architecture Implementation and Its Waveform Application

This paper attempts to do a research on the development of software defined radio（SDR） based on software communication architecture（SCA）. Firstly, SCA is studied and a whole reference model of SCA3.0 core framework （CF） is realized; Secondly, an application-specific FM3TR waveform is implemented on the platform of common software based on the reference model; Thirdly, from the point of view of real-time performance and software reuse, tests and validations are made on the above realized CF reference model and FM3TR waveform. As a result, the SCA-compliant SDR has favorable interoperability and software portability and can satisfy the real-time performance requirements which are not too rigorous.     

Dynamic Simulation of the Tank Gun Recoil Response

By using the ATV module of MSC. ADAMS, the dynamic simulation of recoil response of tank gun is analyzed.How the recoil force affects the bodywork and the suspension during gun firing, as well as the changing status of the gun muzzle‘s velocity are gained. All results and analyzing methods are offered for the designing basis of optimizing tank vehicle-gun match. The constructive exploration is beneficial to improving the general capability of tank.     

Survey of Controllable Suspension System for Off-road Vehicles

The controllable suspension system can improve the performances of off-road vehicles both on road and cross-country. So far, four controllable suspensions, that is, body height control, active, semi-active and slow-active suspensions, have been developed. For off-road vehicles, the slow-active suspension and the semi-active suspension which have controllable stiffness, damping and body height are more appropriate to use. For many years, some control methodologies for controllable suspension systems have been developed along with the development of modern control theory, and two or more original control methods are integrated as a new control method. Today, for military or civilian off-road vehicles, the R&D of controllable suspension systems is ongoing.     

Passive Acoustic Radar for Detecting Supersonic Cruise Missile

A Passive Acoustic Radar is presented as a necessary complement to electromagnetic wave radar, which will be expected to be an effective means for detecting cruise missiles. Acoustic characteristics of supersonic flying projectiles with diverse shapes are expounded via experiment. It is pointed out that simulation experiment could be implemented using bullet or shell instead of cruise missile. Based on theoretical analysis and experiment, the ““acoustic fingerprint““ character of cruise missile is illustrated to identify it in a strong noise environment. After establishing a locating mathematical model, the technique of acoustic embattling is utilized to resolve a problem of confirming the time of early-warning, considering the fact that velocity of sound is much slower than that of light. Thereby, a whole system of passive acoustic radar for detecting supersonic cruise missile is formed.     

Design and Analysis of Test Schemes of Static Postponing Time on Shrapnels Used to Riot Control

The test scheme of static postponing time given in our actual national military test standard on shrapnels used to control riot is a nine-point test scheme on the combined action of three kinds of temperatures and three kinds of pressures,the consumed ammunitions are more excessive. Statistic analysis and tentative checkout about a lot of test data are done,feasibility gists are put forward for optimizing of the test design scheme. The optimizing design and data analysis of test scheme of the item are done by managing uniformity design theory, two scientific and reasonable six-point test schemes are confirmed. The feasibility and reliability of the optimizing design schemes put forward above are proved ulteriorly by test validating. The gained schemes not only have good design uniformity and little ammunition wastage and meet the test demand, but also have better forecast ability for the result data of other points using the mathematic models from the actual test points.     

Super-resolution Restoration of Remote-sensing Images

A novel image restoration scheme, which is super-resolution image restoration algorithm Poisson-maximum-afterword-probability based on Markvo constraint （MPMAP） combined with evaluating image detail parameter D, has been proposed. The advantage of super-resolution algorithm MPMAP incorporated with parameter D lies in the fact that superresolution algorithm MPMAP model is discrete, which is in accordance with remote-sensing imaging model, and the algorithm MPMAP is proved applicable to linear and non-linear imaging models with a unique solution when noise is not severe. According to simulation experiments for practical images, super-resolution algorithm MPMAP can retain image details better than most of traditional restoration methods; at the same time, the proposed parameter D can help to identify real point spread function （PSF） value of degradation process. Processing result of practical remote-sensing images by MPMAP combined with parameter D are given, it illustrates that MPMAP restoration scheme combined PSF estimation has a better restoration result than that of Photoshop processing, based on the same original images. It is proved that the proposed scheme is helpful to offset the lack of resolution of the original remote-sensing images and has its extensive application foreground.