空中运动

人体空中运动模拟在MATLAB和VC混编中的实现

Development of the Simulative System for Human Airborne Movement Based on Mixed Programming of MATLAB and VC

ISAR可对指定的空域进行侦查和监测，能够对运动目标成像，尤其是对空中运动目标进行识别。

ISAR is designated to conduct detection and monitoring of airspace and make moving target imaging , especially for the air moving target recognition .

为提高空中运动平台对目标分类的能力，将基于D-S证据理论的信息融合方法用于运动平台多传感器的目标识别方面。

To improve the capacity of aerial moving platform for target classification , a method of information fusion based on D-S theory was applied to the target identification of moving platform multi-sensor .

它能够对空中运动的远距离点目标和近距离体目标的某一部分进行自动跟踪和测量，其目标通过光学系统成像于CCD接收面上，经光电变换，最终在电视屏上输出目标像。

It can automatically track and measure the far point target and close quarters big target . The target get across the optical system and imaging to the CCD incept surface , after photoelectricity transform , output the target image on the TV screen finally .

空中运动目标时延变化的仿真

Simulation of Time Delay Variations of Target in Motion in the Air

空中运动目标时变时延估计方法的仿真研究

Research and Simulation on Time Variant Time Delay Estimation of Moving Air Target

空中运动多目标识别与跟踪技术是武器电视跟踪系统中的关键技术。

Multi_object recognizing and tracking is key technology of weapon tracking system . Exercise .

亚音速空中运动目标被动声探测定位系统研究

Subsonic Aerial Targets Passive Acoustic Detection Positioning System

直升机空中运动的数值模拟

Numerical Simulation of Helicopter Motion in Air

一种空中运动多目标形心跟踪方法

A centroid tracking method of multiple targets

该研究成果可直接用于对空中运动目标，如无人机等目标的无源声测定位。

The results could be directly utilized in localizing the target in the air such as helicopters , and so on .

运动目标检测是远程预警和战场侦察不可或缺的一个重要方面，既包括空中运动目标检测，也包括地面运动目标检测。

Moving target indication play an important role in Early Warning and battlefield surveillance , which includes air moving target indication and ground moving target indication .

针对利用非合作外辐射源对空中运动目标进行成像这种新体制无源雷达系统，提出了一种基于二维傅里叶变换进行目标重建的分布式无源雷达成像算法。

An imaging algorithm based on the two-dimensional Fourier transform is proposed for target imaging in a new type of passive radar system which uses multiple non-cooperative external illuminators as transmitters .

由于空中运动目标速度大，产生的多谱勒偏移使得它在频域偏离主瓣杂波，这时可以在旁瓣杂波处进行检测。

Doppler offset resulting from high velocity of air moving target makes it deviate from main clutter in frequency , and then air moving target can be detected in sidelobe clutter .

3月24日晚上，我收到一名警卫或者说安全控制人员的电话，他说观察到一些奇怪的光线在空中运动，他们报告的时候，我认为这是非常奇怪的报道，但是我确实严肃对待了。

Sometime in evening hours , on March 24th , I received a call from one of my topside guards , much clear security controller , stating that there they were observing strange lights in the sky making the maneuvers , and when they reported , I thought it was a kind of strange report but took it seriouly .

自由式滑雪空中技巧运动损伤及预防

The Injuries and Their Precautions In Air acrobatics in Freestyle Skiing

基于图象序列分析的空中目标运动参数估计

Estimation of motion parameters for air targets based on image sequence analysis

这些球在空中的运动轨迹是不同的抛物线。

The movement tracks of these balls in space are different parabolas .

空中目标运动轨迹的数学模型

Mathematical model of moving target trail

陀螺被用来指示陆上的、海上的或空中的运动体的方向。

A gyrocompass is required to indicate the heading of a land , sea , or air vehicle .

该文对雨滴水波的仿真包括雨滴在空中的运动状态和雨滴滴在水面上形成的水波的运动状态。

The simulation of raindrops and ripples includes motion of raindrops in the air and motion of ripples in the water in this paper .

球在空中沿曲线运动。

The ball curved through the air .

逆合成孔径雷达（ISAR）是最典型的对空成像技术，但大多数情况下由于空中目标的运动轨迹和运动参数都是未知的，目标运动的非合作性会造成ISAR成像性能的下降。

Inverse synthetic aperture radar ( ISAR ) is the typical imaging technique to flying target . But the unexpectable target motion trail and parameters will lower down the ISAR imaging quality .

子弹在空中作曲线运动。

A bullet describes a curved path in the air .

空中红外弱小运动目标检测方法研究

The Research of Infrared Moving Weak Small Target in the Sky Detection Method

我决定选修流体力学方面的一些课程&研究人体在空中和水中运动时的表现。

I decided to take some courses in fluid mechanics-the study of how bodies behave as they move through air or water .

美国降伞协会编辑和分发有关空中降伞运动的信息，为学生开发指导性降伞程序，培训和评估降伞教师。

USPA compiles and distributes information on the sport of skydiving , develops instructional programs for student skydivers , and trains and rates skydiving instructors .

该方法产生的航迹模型真实地接近空中目标实际运动轨迹，更符合目标的实际运动特性。

The track mode produced through this method is consistent with the actual moving tracking of the air target , and especially accord with the characteristic of actual moving target .

由于聚合物溶液的黏弹性，聚驱井中含聚采出液在环空中的螺旋运动更为复杂。

It might be more complex for the spiral flow of the produced polymer in the annular in a polymer flooding well for the viscoelastic behavior of the polymer solution .

H-B流体在小井眼同心环空中轴向层流的运动规律

The axial laminar flow pattern of H-B fluid in the concentric annular of slim hole