Taking sea target surveillance and hitting system for example, the top-level demands are described using user case diagram, class diagram, activity diagram and collaboration diagram in UML.
以海上目标监视与打击体系为例，给出利用UML中的用例图、类图、活动图、协作图对体系顶层需求进行描述的方法。
This is caused by the complexity of underwater target radiated noise and the variety condition of the sea.
这是由于水下目标辐射信号和海洋环境的复杂性、多变性造成的。
This thesis researches the detection algorithm of small target under sky background and sea-sky background.
本文着重对天空背景和复杂海天、海面背景下的弱小目标检测算法进行了深入研究。
The Micro Systems, Inc MOdular Networked TArGet control Equipment (MONTAGE) is a flexible, expandable control system for ground, sea surface, and high performance air vehicles.
我们公司提供的这款遥控飞行器控制系统，结构灵活，控制系统可扩大，主要用于地面，海洋表面和高性能车辆等领域。
In order to detect the low-speed weak target in the stationary sea clutter, the clutter-whitening processing module is proposed to replace the conventional MTI filter and Doppler filter bank.
为了检测平稳海杂波中的低速弱目标，本文引入杂波白化处理模块取代雷达常用的MT I滤波器和多普勒滤波器组。
As to sea image, the variance feature of region of interest and the luminance contrast feature between target and background are used to fusion recognition.
对于海面图像，分别采用感兴趣舰船目标区域的方差值、目标和背景亮度对比度这两个特征对目标进行融合识别。
The experimental results show that the method can reject the clutter caused by waves and clouds and effectively detect and segment IR small target in the complicated sea background.
实验结果表明，该方法可以较好地抑制海浪、云层等背景的干扰，能有效检测复杂海面背景中的红外小目标。
The experimental results show that this method can detect small IR target such as warship in a complex sea background.
实验结果表明，该方法能检测复杂海面背景中的舰船红外小目标。
The target detection technology under the sea clutter plays an important role in both military and civilian areas.
海面目标检测技术在军用和民用方面都有很大实用价值。
The TOPSIS method was used for evaluating the threat target of the sea battlefield.
逼近理想排序法被用于对海战场威胁目标进行评估。
This article mainly has carried on the research design to the infrared target identification algorithm in the sea level.
本文主要对海面红外目标识别算法进行了研究设计。
Later, as a new trial of application of parameter-induced stochastic resonance in signal processing, the problem of target detection in sea reverberation is considered.
接着，作为参数调节随机共振在信号处理中的一个新的尝试，我们考虑了海洋混响噪声背景下的目标探测问题。
The results show that the method can reduce the positioning error and obtain a higher location accuracy to meet the needs of target location on sea or load.
分析结果表明，该方法可以减小定位误差，获得较高的定位精度，满足对海上或陆上目标定位的需求。
This paper realize the radar echo signal analysis and modeling from three aspects: contain the target echo, sea clutter, rain clutter and noise.
着重从目标回波、海杂波、噪声三个方面对雷达回波信号进行了分析和建模。
Conclusion: in view of the seriousness of the ocean pollution, the safety target of the toxin of Sp should be tested in order to ensure the eating safety of the shells in the sea.
结论：鉴于海洋污染的严重性，为保障海贝的食用安全，应对贝类进行毒素安全指标检测。
The targets SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.
海面背景下海面及连绵起伏的波浪反光使图像的信噪比和对比度都较低，而且舰船目标像素较少。
For the problem of multi-path effects, firstly the low-angle target tracking model of sea-surface is built up, and the geometric relationship among target, image and radar is analyzed.
针对多径效应的问题，首先建立海面低空目标的跟踪模型，分析了目标、镜像和雷达之间几何关系。
On a process of identifying the sea surface target by using D-S evidence theory, the method of how to determine basic probability assignment (BPA) by measured data of sensor is studied.
在应用D S证据理论识别海面目标的过程中，重点研究了如何通过传感器数据实测值来确定基本概率分配函数（BPA）的方法。
This paper studies the algorithms of sea surface target detection in three aspects.
本文主要从三个方面研究和分析海面目标检测算法。
An efficient target detection algorithm for infrared sequence image with sea-sky background is presented.
提出一种海天背景下红外序列图像自动目标检测算法。
If you cover one of your eyes, you can't even jump into your target boat. With only one eye, you may regard three meters as one meter, thus you will fall into the sea before you rob the boat.
如果你把一只眼睛捂住的话，你甚至都跳不到要打劫的船上，因为三米远的距离在你一只眼看来也许只有一米远，那样你会跳进大海中。
Studies the measurement of low frequency radiation noise from an underwater target by a vector hydrophone, discusses the method of measurement and presents the test results in the sea.
研究利用矢量水听器测量水下目标低频辐射噪声的问题，并给出了测量方法和海上试验结果。
Moving together, the fish confuse the sea lions so much that they leave to look elsewhere for a smaller, less tricky target.
统一行动，逼得海狮无从下口，只好到别处去，找个没这么麻烦的捕猎目标。
Sea clutter is the undesired radar echoes from sea surface. The existence of sea clutter contribute a serious disturbance to the target detection performance of radar.
海杂波是海面反射的雷达回波，海杂波的存在严重干扰了雷达对海面目标的检测性能。
When we experiment on mine detection on the sea it is always found that the position of target in echo images is not fixed because of sway of ship and this reduces the veracity of detection.
在海上进行探测水雷的试验中，常常因为船体的摇摆而使回波图像中目标的位置不固定，影响了水雷探测的准确性。
Rangefinders are widely used to measure distance or detect target orientation in military affairs, as well as in detecting sea-route, laying cables or fibers.
测距仪除应用于军事领域外，还广泛适用于航道、邮电光缆和电力电缆铺设等领域的距离测量和目标方位的确定。
Rangefinders are widely used to measure distance or detect target orientation in military affairs, as well as in detecting sea-route, laying cables or fibers.
测距仪除应用于军事领域外，还广泛适用于航道、邮电光缆和电力电缆铺设等领域的距离测量和目标方位的确定。
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