Simple and easy deduction and calculation of the ideal flying out angle of shot 铅球理想??射角的简易推导与计算
Are there airplanes flying over every city with super high resolution and super wide angle lenses that can do this right now, unnoticed? 难道在每个城市的上空含有超高分辨率,和超广角镜头的飞机正在进行拍摄,并且未被注意到吗?
The simulation results show that MTI processing of MIMO radar can acquire higher improvement factor to targets flying at arbitrarily angle. 仿真结果表明,对以任意角度飞行的目标,MIMO雷达MTI处理均可获得较高的改善因子。
Such requirements can be achieved by fighter flying at high angle of attack or even beyond post stall. 飞行器的高机动、高敏捷往往是通过大攻角飞行甚至过失速机动来实现的。
The effect of flying angle β and surface radiation characteristic on solar external heat flux was analyzed by the calculation results. 分析了飞行角β和表面辐射特性等因素对太阳热流的影响。
Research on passive location method using phase difference change rate with fixed flying posture angle 固定飞行姿态角下的相位差变化率无源定位方法研究
The results of trails indicated that the effect of control system was obvious, the craft could operate successfully in hydrofoil flying condition at high speed in the design sea state 3. The pitch angle θ 3% was less than 1.2; 实艇试验结果表明;控制系统效果显著,艇在3级设计海况中能高速平稳翼航,纵摇θ(3%)<1.2°;
The results indicate: with the increasing the flying height and scanning angle, the received backscattered power decreases rapidly, the SNR deteriorates seriously and the ranging error increases significantly. 计算表明,随航高和扫描角度的增加,回波信号功率衰减,信噪比降低,测距误差增大。
The myth of Chang E flying to the moon can be illuminated the theme that female fleeing away the oppression of the male from a female's neoteric visual angle. 对嫦娥奔月这则神话以全新的女性视角进行阐释,可以析出女性逃离男权压抑的主题。
The result shows that the algorithm is efficient for the correction of integrated radiance distortion caused by the flying orientation, scanning angle of sensor, azimuth and elevation of sun, and path radiance etc.. 结果证明,该算法对由飞行方向、传感器扫描角度、太阳方位角和高度角以及路径辐射等造成的综合辐射畸变具有良好的校正效果。
Based on the working feature of flying shear mechanisms and considering the motion track, velocity and position angle of connecting rod, a multi-objective optimization model is built. 根据飞剪剪切机构的工作特点,综合考虑连杆运动轨迹、速度和位置角,建立多目标优化模型。
Setting main parameters of disc flying shears are presented in detail. including cut angle, bite conditions, amount of scissors overlapping, friction coefficient and rolling speed etc. 详细介绍了圆盘式飞剪各主要参数的确定,包括交角、咬入条件、剪刃重叠量、摩擦系数、轧制速度等。
The flying around orbit is described in three respects: the coordinate plane projection, the angle with the coordinate plane, flying around orbit elements. 从三方面对绕飞轨道进行了描述:坐标平面投影,与坐标平面的夹角,绕飞轨道根数。
In the paper, a method is developed about attack angle measurement of flying projectile with linear array CCD technology, and the calculation method of the attack angle established. 提出应用线阵CCD技术测量飞行弹丸攻角,建立了测量飞行弹丸攻角的计算方法。
The difference of orbital energy consumption between formation flying satellites is studied using the model of atmosphere density including daily effect, and it is indicated that the drift is determined by the formation initial phase and the angle between orbital plane and the direction of solar-density-daily-peak. 基于包含周日效应的大气密度模型,研究了编队卫星轨道能量耗散的差异,进而指出大气摄动引起的构形漂移与构形初始相位、以及轨道面和太阳密度周日峰方向夹角之间存在的关系。
After measuring the velocities of many fragments and the flying angle, the coefficient of velocity attenuation can be calculated. 可以通过测量多个破片的飞行速度与飞行姿态角,推导出速度衰减系数。
The Advance of Aircraft Flying Qualities Researching at High Angle of Attack 飞机大迎角飞行品质研究的进展
Linear state feedback and its application to electronic control of flying shear for angle bars 线性状态反馈及其在角钢飞剪机电控系统中的应用
Furthermore, it is suggested that the gains of the lateral and directional paths in the flight control system be adjusted with the angle of attack for consistently satisfactory flying qualities within a wide regime of angle of attack. 同时建议飞控系统横航向通道随迎角调参,以确保在更宽的迎角范围内具有满意的飞行品质。
There are many methods to measurement the flying attitude, such as solar attitude angle sensor, high-speed photography and geomagnetic field sensor. 飞行体的姿态测试方法有许多种,如太阳方位角传感器遥测、高速摄影法、地磁传感器等。
The measurement of the flying parameteres of a high speed object, such as coordinate ( firing precision), yaw and attack angle and so on, is a main task in proving test field. 高速运动物体的飞行参数的测量如:坐标测量着靶位置、偏航及飞行姿态等是弹箭类常规武器试验的关键项目。
On the Sensitivity of Aircraft Longitudinal Flying Qualities to Aerodynamic Derivatives at High Angle of Attack 飞机纵向飞行品质对大迎角气动导数的敏感性研究
The velocity and flying angle of droplets in water sprays formed by different pressure atomizers were measured by laser holographic technique. 采用激光全息测量技术对两种压力式喷嘴的喷雾液滴速度进行了测量。实验中测量了喷雾场不同区域的液滴速度分布。
The other only change flying angle. 第二,只允许航向角变化。
Here, the flying status of the target keeps changing, and the axial direction is seldom along the tangent direction of the trajectory, so it cannot be avoided that the angle factor is affected by the trajectory. 飞行体的姿态不断变化,其轴向很少与轨道切向重合,不可避免地对激光照射时的角度因子发生了影响。
It was mainly due to soft volleyball flying in the air resistance by the larger, in order to increase the forward force, achieved by changing the angle shot. 这主要是由于软式排球在空气中飞行时受到的阻力较大,为了增大向前的作用力,通过改变出手角度来实现。
Based on these, to the characteristics of low speed rolling projectile in flying, an automatic control system is designed with the classic control methods. The air dynamic couplings were eliminated by the equivalent rudder angle method. 在此基础上,针对低速滚转炮弹飞行过程中的特点,采用经典控制理论设计了制导炮弹的自动控制系统,并引入等效舵偏角对气动耦合进行补偿。