This book provides the reader with the basics in radio engineering, the techniques needed to generate, control, detect, and use radio waves. The text approaches the relevant problems both from the electromagnetic theory based on Maxwell抯 equations and from the circuit theory based on Kirchoff and Ohm抯 laws. brief introductions to the electromagnetic theory as well as to the circuit theory are provided. Besides passive transmission lines and components, active RF circuits are also addressed.
标签： the engineering techniques provides
上传时间： 2014-01-17
上传用户：rocketrevenge
This book is about writing TinyOS systems and applications in the nesC language. This chapter gives a brief overview of TinyOS and its intended uses. TinyOS is an open-source project which a large number of research universities and companies contribute to. The main TinyOS website, http://www.tinyos.net, has instructions for downloading and installing the TinyOS programming environment. The website has a great deal of useful information which this book doesn’t cover, such as common hardware platforms and how to install code on a node.
标签： This applications language chapter
上传时间： 2017-09-04
上传用户：253189838
《分析性写作》，介绍言简意赅： The popular, brief rhetoric that treats writing as thinking, WRITING ANALYTICALLY, Sixth Edition, offers a series of prompts that lead you through the process of analysis and synthesis and help you to generate original and well-developed ideas. The book's overall point is that learning to write well means learning to use writing as a way of thinking well. To that end, the strategies of this book describe thinking skills that employ writing. As you will see, this book treats writing as a tool of thought--a means of undertaking sustained acts of inquiry and reflection.
上传时间： 2015-08-22
上传用户：东大寺的
Part I provides a compact survey on classical stochastic geometry models. The basic models defined in this part will be used and extended throughout the whole monograph, and in particular to SINR based models. Note however that these classical stochastic models can be used in a variety of contexts which go far beyond the modeling of wireless networks. Chapter 1 reviews the definition and basic properties of Poisson point processes in Euclidean space. We review key operations on Poisson point processes (thinning, superposition, displacement) as well as key formulas like Campbell’s formula. Chapter 2 is focused on properties of the spatial shot-noise process: its continuity properties, its Laplace transform, its moments etc. Both additive and max shot-noise processes are studied. Chapter 3 bears on coverage processes, and in particular on the Boolean model. Its basic coverage characteristics are reviewed. We also give a brief account of its percolation properties. Chapter 4 studies random tessellations; the main focus is on Poisson–Voronoi tessellations and cells. We also discuss various random objects associated with bivariate point processes such as the set of points of the first point process that fall in a Voronoi cell w.r.t. the second point process.
标签： Stochastic Geometry Networks Wireless Volume and
上传时间： 2020-06-01
上传用户：shancjb
n the first part of this book, we give an introduction to the basic applications of wireless com- munications, as well as the technical problems inherent in this communication paradigm. After a brief history of wireless, Chapter 1 describes the different types of wireless services, and works out their fundamental differences. The subsequent Section 1.3 looks at the same problem from a different angle: what data rates, ranges, etc., occur in practical systems, and especially, what combination of performance measures are demanded (e.g., what data rates need to be transmitted over short distances; what data rates are required over long distances?) Chapter 2 then describes the technical challenges of communicating without wires, putting special emphasis on fading and co-channel interference. Chapter 3 describes the most elementary problem of designing a wireless system, namely to set up a link budget in either a noise-limited or an interference-limited system. After studying this part of the book, the reader should have an overview of different types of wireless services, and understand the technical challenges involved in each of them. The solutions to those challenges are described in the later parts of this book.
标签： Communications Wireless Edition 2nd
上传时间： 2020-06-01
上传用户：shancjb
The Segmentation of Ferrography Images A brief Survey
标签： Segmentation Ferrography Images Survey brief The of
上传时间： 2020-11-02
上传用户：
全志A33芯片资料A33核心板技术手册硬件参考设计A33开发板CADENCE原理图PADS PCB图文件：A33 brief 20140522.pdfA33 Datasheet release1.0.pdfA33 user manual release 1.0.pdfA33-Core3引脚定义表.pdfA33-Core3核心板外围电路设计参考.pdfA33-Core3核心板硬件手册.pdfA33_Vstar3使用手册VerC.pdf尺寸图底板PCB图开发底板原理图PCB网卡电路参考设计说明.txtA33-Core3引脚图.pdfA33-Vstar-LCD07-10.pdfRER-A33-DVK3-padslogic95.schRER-A33-DVK3-SCH.DSNRER-A33-DVK3-SCH.pdf第二版改MIPI座子
上传时间： 2021-11-08
上传用户：qdxqdxqdxqdx
参考 FreeRTOs，orq怎样工作小节获取多任务的基本概念任务和联合程序文档提供了怎样判断何时适合以及何时不适合使用联合程序的方法，下面是简单的总结。注意一个系统可以只使用任务、或者只使用联合程序、或混合使用-但是任务和联合程序使用不同的API函数，因此一个队列（或者信号）不能用于从任务传递数据到联合程序，反之亦然。任务"的特性FreeRTOS低于V4.0.0.0的版本只允许实时系统的结构以一组任务的方式组成，这是RTOS调度的传统模式。简评 In brief：一个使用RTos的实时应用系统可以由一组独立的任务组成，每个任务执行它自己的内容而不依赖于其他任务或者调度器。在任何时候只有个任务可以被执行，调度器负责决定哪个任务应当被执行。调度器反复启动和停止任务（切换任务），因为个任务不清楚调度器的活动，所以在任务切换时保证处理器内容不变（寄存器值、堆栈等）就是实时内核调度器的工作。要做到这点每个任务都需要使用自己的堆栈，当任务切换时运行的参数保存到堆栈中任务再次运行时就可以从堆栈中恢复参数。参考 FreeRTOs怎样工作小节获得更多内容。就绪的任务是那些可以执行（没有被阻塞或暂停），但是因为其他相同或更高优先级任务正在运行造成还没有运行的任务。阻塞当一个任务等待临时事件或外部事件时它就是处于阻塞状态。例如，任务调用 VAsk Delay（），它将被阻塞（置为阻塞状态）直到超过延时时间个临时事件。任务也可以阻塞等待队列和信号事件。阻塞状态的任务般有一个超时时间，超时后任务将解锁。阻塞的任务不会参与调度。
标签： freertos
上传时间： 2022-03-19
上传用户：kingwide
