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On the Energy Detection of Unknown Signals Over Fading Channels
- On the Energy Detection of Unknown Signals Over Fading ChannelsAbstract—This letter addresses the problem of energy detection of an unknown signal over a multipath channel. It starts with the no-diversity case, and presents some alternative closed-fo
gupiaozhangting
- 对股票涨停的现象和涨停的规律进行详细分析研究，本书所记载的方法只在特定的市场环境下有很高的参考价值。-The phenomenon of the stock and limit daily limit law to conduct a detailed analysis, the method recorded in the book only in a particular market environment has high reference value.
InTech-Computational_fluid_dynamics
- The purpose of this tutorial is to study the hydrodynamics and bubble formation in a uidized bed over a period of time. It also demonstrates how to customize a drag law for granular gas-solid ow. The default drag law in FLUENT is the Syamla
sun
- 太阳黑子是人们最早发现也是人们最熟悉的一种太阳表面活动。因为太阳内部磁场发生变化，太阳黑子的数量并不是固定的，它会随着时间的变化而上下波动，每隔一定时间会达到一个最高点，这段时间就被称之为一个太阳黑子周期。太阳黑子的活动呈现周期性变化是由施瓦贝首次发现的。沃尔夫 (R.Wolfer)继而推算出11年的周期规律。实际上，太阳黑子的活动不仅呈11年的周期变化，还有海耳在研究太阳黑子磁场分布时发现的22年周期；格莱斯堡等人发现的80年周期以及蒙德极小期等。由于太阳黑子的活动规律极其复杂，时至今日科学家
Ch2
- The use of fingerprints for identification has been employed in law enforcement for about a century. A much broader application of fingerprints is for personal authentication, for instance to access a computer, a network, a bank-machine, a ca
acmfudaojiaocheng
- 问题规模化是近来信息学竞赛的一个新趋势，它意在通过扩大数据量来增加算法设计和编程实现的难度，这就向信息学竞赛的选手提出了更高层次的要求，本文试图探索一些解决此类问题的普遍性的策略。开始，本文给出了“规模化”一词的定义，并据此将其分为横向扩展和纵向扩展两种类型，分别进行论述。在探讨横向扩展问题的解决时本文是以谋划策略的“降维”思想为主要对象的；而重点讨论的是纵向扩展问题的解决，先提出了两种策略——分解法和精简法，然后结合一个具体例子研究“剪枝”在规模化问题中的应用。问题规模化是信息学竞赛向实际运用
05582198
- 在这篇文章中，我们提出用一种全新的方法即前景后景分离（FBS）结构法来解释极化合成孔径雷达（极化SAR）图像。这种FBS结构法在像素上考虑了空间关系并融合了成对差异分组法的优点，FBS法可以将特定的目标和对象从背景中分离出来，这在解译系统中是必不可少的。可结合多种FBS操作来解译极化SAR图像并灵活地融合各种固有特征的极化SAR数据。几组极化SAR数据将被用来验证提出的方法。-In this article, we propose a new method that prospects King
Considering-the-model-uncertainty
- 导弹制导的协同控制方法:针对导弹制导系统中存在的模型不确定性和外部扰动，研究了末制导规律的设计与实现问题。-Considering the model uncertainty and external disturbance in guidance system，the de— sign and implementation method of terminal guidance law for a missile is investigated
Using-Temporal-Indicator-Functions-with-Generaliz
- A significant amount of research and practice in the law enforcement arena focuses on spatial and temporal event analysis. And although some efforts have been made to integrate spatial and temporal analysis, the majority of the previous work focu
COTREC
- 利用多普勒雷达资料，采用一种改进后的交叉相关法(COTREC)建立了一种降水临近预报方 法-The use of Doppler radar data, using an improved cross-correlation method after (COTREC) established a precipitation nowcasting party Law
Aritificial-Intelligence
- 人工智能是一门极富发展潜力和挑战性的学科，和大多数事物发展规律一样，该学科也呈“肯定-否定-否定之否定”的螺旋上升发展趋势。文章分析了人工智能的内涵、发展历程以及目前人工智能研究领域占主导地位的三种发展观，最后简要的介绍其应用领域及发展前景。-Artificial Intelligence is a highly potential and challenging disciplines, and the law of development, like most things, the su
occlusion-refer2
- Face recognition [1], the least intrusive biometric technique in terms of acquisition, has been applied to a wide range of commercial and law enforcement applications. State-ofthe- art face recognition systems perform with high accuracy under