宽带FM信号和窄带CF 信号传输到目标，从目标反射回来，然后返回猎蝠。
The broadband FM signals and the narrowband CF signals travel out to a target, reflect from it, and return to the hunting bat.
首先分析了目标反射特性，表明目标可用一组散射点集合来模拟。
First, the reflective character of target is analyzed. It is indicated that the target can be modeled by a group of scattering points.
因此，目标反射信号的检测和提取是个难点，也是无源探测定位的关键技术之一。
So, the detection and extraction of signals reflected by the target are difficulties and the key technology of passive tracking location.
尤其是对于微弱的目标反射信号，本算法与常规算法相比，有十分明显的优越性。
The algorithm has obvious advantages over traditional ones especially in extracting weak target echoes.
波束制导系统使用一个目标跟踪装置，它的目的是保持天线视轴指向目标反射的中心。
Beam riding systems use a target tracker whose purpose is to maintain the antenna boresight pointing at the centre of the reflecting area of the target.
为了接收水下目标反射回波，研究并设计了一种高精度、大动态范围的通用水声接收机。
In order to receive the echo of the underwater target, a method to design a kind of high precision, wide dynamic range, general receiver is presented in this paper.
文章分析了调制脉冲激光雷达探测信号水下传输模型，研究了海水后向散射信号以及目标反射信号的频域特性。
The article analyses the seawater transport model of the modulated-pulse LIDAR signal, and the frequency characteristic of the seawater backscattering signal and target reflecting signal are studied.
当利用它进行水下目标强度测试时，一个很实际的问题就是怎样区分声源直达声和目标反射回声，快速找出目标特性。
When we use it to test the underwater target strength, one problem is how to discriminate the direct sound of the source with the echo reflected from the target, finding the target character quickly.
激光雷达系统的作用距离由下列因素决定：脉冲能量、脉冲宽度、光束发散角、大气衰减、目标反射率和接收机灵敏度等。
The operating distance of a laser radar system is determined on pulse energy, pulse width, beam divergence angular, atmosphere attenuation, target reflection, receiver sensitivity and so on.
采用偏振检测方法，对机载激光测深实验系统接收到的大动态范围的水下目标反射的激光回波信号的压缩进行了实验研究。
This paper described a polarization detection method to compress the lager dynamic range of laser returned signals in airborne laser bathymetry system.
本文根据激光的目标等效反射截面的概念，提出计算从目标反射回来的激光波形的一般公式。推导出从漫反射的平板、球和圆柱目标反射回来的激光波形的解析表达式。
In this paper a general formula for calculating the laser waveshapes reflected from the targets is proposed on the basis of the idea on laser equivalent cross-section reflected from the targets.
在这个传递和反射的过程中，声音发生了变化，回声的变化使蝙蝠能够感知到目标的特征。
In this process of transmission and reflection, the sounds are changed, and the changes in the echoes enable the bat to perceive features of the target.
这里的基本方法是，在运行时，以一种可以被一般性代码使用的方式，构建一个自定义的类，其中将包装对目标类的访问(以前是通过反射达到的)。
The basic approach here is to construct a custom class at runtime that will wrap access to the target classes (previously reached by reflection) in a way that can be used by your general-purpose code.
可以利用反射，在第一次把目标程序的类文件装入JVM 之后，创建这种类型的模型。
You can build a model of this type by using reflection, after first loading the target program's class files into the JVM.
通过将信息注入正在运行的流程，攻击者可以危害进程的运行状态，以反射到开发人员无法保护的某种最终目标。
When attempting to inject information into a running process, attackers are trying to compromise the running state of the process to reflect some end goal that is unprotected by developers.
与雷达和声纳技术相似，激光雷达(光探测和测距)的工作原理是通过向目标发射电磁波然后根据反射波构建图像。
Like its Cousins radar and sonar, lidar (light detection and ranging), works by broadcasting electromagnetic waves towards a target and then building up a picture from the reflection.
解决这些问题的最佳方案是保守地使用反射——仅在它可以真正增加灵活性的地方——记录其在目标类中的使用。
The best ways to deal with these issues are to use reflection sparingly — only in the places where it really adds useful flexibility — and document its use within the target classes.
第二个目标是：它应当迅速，使用字节码增强直接把绑定代码添加到应用程序类（与侵入性较小但是较慢的反射技术相反）。
The second was that it would be fast, using bytecode enhancement to add the binding code directly to the application classes (as opposed to the less invasive but slower technique of reflection).
与雷达和声纳技术相似，激光雷达的工作原理是通过向目标发射电磁波然后根据反射波构建图像。
Like its Cousins radar and sonar, lidar, works by broadcasting electromagnetic waves towards a target and then building up a picture from the reflection.
最后，旨在实现了由简单的积分使用反射式准直激光视力和整体目标模块。
Finally, simplicity of aiming was achieved by use of integral reflex type collimating sight and integral laser aiming module.
光速大约为声速的100万倍，因此光波的反射现象可以有效地用来探测目标物及其距离。
Since the speed of light is about a million times as great as that of sound waves, the reflection of light waves may very well be applied in detecting a target and its distance.
并且这还只是整个进程的一半：一旦电波碰到目标物体反射，它们必须再次穿过墙壁返回雷达的接收器。
And that’s only half the battle: Once the waves bounce off any targets, they must pass back through the wall to reach the radar’s receivers — and again, 99 percent don’t make it.
西武新列车项目的目标不是像“反射”那样完全“隐形”，而是一种模拟的隐身术。
Seibu's new trains won't really be "invisible" so much as "reflective, " but a simulated disappearing act is the goal of the project.
三阶剖面一代对-飞行速度，加速度，反射和目标位置的改变。
Third-order profile generation with on-the-fly velocity, acceleration, jerk and target position changes.
基于目标和地面电磁反射特性数据库的信息和雷达探测模型，实现了雷达图像动态生成。
By the use of the electromagnetic reflection information of targets and ground in database, the radar detection model can generate radar image dynamically.
彩色目标检测过程中由于环境光照的变化以及分布不均匀会造成物体反射光的改变，使得检测效率降低。
The variations of object's reflection light induced from illumination variations and uneven illumination distribution greatly reduce the detecting efficiency in the process of color object detection.
本文给出该系统的课程建设目标规划模型及其反射p空间算法。
In this paper are presented the goal programming model for course construction and the reflection P-space algorithm of the system.
同时，随着观测点在尾迹中的位置距目标船的接近，气泡密度不断增大，反射率也随之增强。
Besides, the bubble density and reflectance increased with the wake observation position approaching the target ship.
同时，随着观测点在尾迹中的位置距目标船的接近，气泡密度不断增大，反射率也随之增强。
Besides, the bubble density and reflectance increased with the wake observation position approaching the target ship.
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