脱靶

The article with the intercept outside aerosphere implement to study a target, consider amount of miss the target is very small approach rate mediumly with intercept process bigger, be aimed at engine to be able to offer constant thrust only, can be started for many times and have pulse job state, and do not have change the character of thrust job status, apply slant buy scale guides brought a law to design agree with the switch threshold value that course controls engine.

本文以大气层外拦截器为探究对象，考虑到脱靶量很小和拦截过程中的接近速度比较大，针对发动机只能提供常推力，能多次启动并具有脉冲工作状态，且不具有变推力工作状态的特性，运用偏置比例导引律设计了适合于轨控发动机的开关阈值。

This paper describes the basic principle of velocity pursuit guidance law and body pursuit guidance law of trajectory correction projectiles , researches the terminal correction trajectory and miss distance under pursuit guidance laws by 6—DOF trajectory simulation program, researches the orbit of laser detector ray axis and ground projection area of laser detector spatial viewpoint.

文中对速度追踪制导律和弹体追踪制导律的工作原理进行了研究，利用六自由度弹道仿真程序对弹道修正弹两种追踪方式下的末段修正弹道和脱靶量进行了对比计算，研究了两种追踪方式下激光探测器光轴的轨迹及激光探测器空间视场在地面投影区域的变化；弹体追踪方式命中精度虽然较低，但由于工程实现简单、成本低，仍有其工程使用价值。

The Approximate time constant of the system is the sum of all the time constants of the one-order lags and for the biquadrafic lag system, and the approximate time constant is the first-order coefficient of the binomial.

不同的比例导引系数下，脱靶量归零的无量纲时间是一定的，即等效时间常数与末导时间呈线性关系，据此可以估算系统的末导时间。

There are mainly 3×3 window module and auto-adapted threshold module used in the article. Firstly, we carry on processing to the CCD data-in, and judgment of spot scope. Then, we utilize the centroid algorithm to process the pixels which occupied on the spot, and obtain the spot position of miss distance.

文中主要采用3×3窗口模块和自适应阈值模块，先对CCD输入数据进行处理，判断光斑的范围，然后再运用光斑的质心算法对光斑所占的像元进行运算，得出光斑位置的脱靶量，最后用VGA格式将图像显示在LCD上。

FEB E divertor ; Puffing gas ; Stagnation density ; Detached plasma

FEBE偏滤器；喷气；驻点密度；脱靶等离子体

Aiming at improvement of attack precision and reduction of target miss distance, different guidance and control laws are proposed and analyzed, the influences of many different kind of conditions to attack precision such as initial flying altitude, airspeed, flight path angle, external disturbance and target movement are investigated. Beneficial to theoretical significance and inspiring for engineering practice results are obtained.

紧紧围绕提高末制导精度、减小脱靶量这一研究目的，对不同的末制导控制方式、不同的末制导导引律、不同的末制导进入条件、不同的外部干扰、不同的目标特性等都进行了深入的研究、分析和探讨，并给出具有一定理论意义和丰富的工程实际应用价值的结论。

SDRAM is used as image storage, which can store many frames image data to provide the foundation for the correlation operation between frames. FIFO is a data buffer for real-time image. All of these make the image processing system simple design, decreasing the write-read time and solving the question of transmission and delay, and allowing the data processing and the data grabbing at the same time. The processed results can be output in 20ms, so the bandwidth of the C6000-based image processing system is improved.

系统采用SDRAM作为图像存储器，可以存储多帧图像数据，为实现帧相关运算奠定了基础，实时图像数据采用FIFO作为缓存，使系统设计简单，读取速度快，解决了数据传输的瓶径问题，同时也减少了传输延时，实现了对图像数据边采集边处理，减少了系统的滞后时间，当场给出电视脱靶量，提高了图像处理系统的带宽。

The miss distance caused by guidance method error and the effects of perturbation are compensated in this initial guidance law.

该初制导方法能补偿制导方法误差和轨道摄动对拦截脱靶量的影响。

The miss distance between the missile and target is very important for people to judge the performance of a missile on the target drone.

在靶场试验中，脱靶量对鉴定导弹的性能起着至关重要的作用。

After the 25 target "Finals" any remaining ties must be decided by shoot-off down to 6th place.

决赛中25个靶打完后，若还有同分的情况应继续比赛，根据脱靶的情况直至决出第6名。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。