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This book provides the reader with the basics in radio engineering, the techniques needed to genera

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.

標簽： the engineering techniques provides

上傳時間： 2014-01-17

上傳用戶：rocketrevenge
This book is about writing TinyOS systems and applications in the nesC language. This chapter gives

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.

標簽： This applications language chapter

上傳時間： 2017-09-04

上傳用戶：253189838
Writing Analytically ( 6th Edition )

《分析性寫作》，介紹言簡意賅： 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.

標簽： Writing Analyticall

上傳時間： 2015-08-22

上傳用戶：東大寺的
Stochastic Geometry and Wireless Networks Volume I

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.

標簽： Stochastic Geometry Networks Wireless Volume and

上傳時間： 2020-06-01

上傳用戶：shancjb
Wireless Communications 2nd Edition

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.

標簽： Communications Wireless Edition 2nd

上傳時間： 2020-06-01

上傳用戶：shancjb
鐵譜圖像的分割

The Segmentation of Ferrography Images A brief Survey

標簽： Segmentation Ferrography Images Survey brief The of

上傳時間： 2020-11-02

上傳用戶：
全志A33芯片資料A33核心板技術手冊硬件參考設計A33開發板CADENCE原理圖PADS PCB圖

全志A33芯片資料A33核心板技術手冊硬件參考設計A33開發板CADENCE原理圖PADS PCB圖文件：A33 brief 20140522.pdfA33 Datasheet release1.0.pdfA33 user manual release 1.0.pdfA33-Core3引腳定義表.pdfA33-Core3核心板外圍電路設計參考.pdfA33-Core3核心板硬件手冊.pdfA33_Vstar3使用手冊VerC.pdf尺寸圖底板PCB圖開發底板原理圖PCB網卡電路參考設計說明.txtA33-Core3引腳圖.pdfA33-Vstar-LCD07-10.pdfRER-A33-DVK3-padslogic95.schRER-A33-DVK3-SCH.DSNRER-A33-DVK3-SCH.pdf第二版改MIPI座子

標簽： a33 芯片

上傳時間： 2021-11-08

上傳用戶：qdxqdxqdxqdx
史上最全的FreeRTOS資料

參考 FreeRTOs，orq怎樣工作小節獲取多任務的基本概念任務和聯合程序文檔提供了怎樣判斷何時適合以及何時不適合使用聯合程序的方法，下面是簡單的總結。注意一個系統可以只使用任務、或者只使用聯合程序、或混合使用-但是任務和聯合程序使用不同的API函數，因此一個隊列（或者信號）不能用于從任務傳遞數據到聯合程序，反之亦然。任務"的特性FreeRTOS低于V4.0.0.0的版本只允許實時系統的結構以一組任務的方式組成，這是RTOS調度的傳統模式。簡評 In brief：一個使用RTos的實時應用系統可以由一組獨立的任務組成，每個任務執行它自己的內容而不依賴于其他任務或者調度器。在任何時候只有個任務可以被執行，調度器負責決定哪個任務應當被執行。調度器反復啟動和停止任務（切換任務），因為個任務不清楚調度器的活動，所以在任務切換時保證處理器內容不變（寄存器值、堆棧等）就是實時內核調度器的工作。要做到這點每個任務都需要使用自己的堆棧，當任務切換時運行的參數保存到堆棧中任務再次運行時就可以從堆棧中恢復參數。參考 FreeRTOs怎樣工作小節獲得更多內容。就緒的任務是那些可以執行（沒有被阻塞或暫停），但是因為其他相同或更高優先級任務正在運行造成還沒有運行的任務。阻塞當一個任務等待臨時事件或外部事件時它就是處于阻塞狀態。例如，任務調用 VAsk Delay（），它將被阻塞（置為阻塞狀態）直到超過延時時間個臨時事件。任務也可以阻塞等待隊列和信號事件。阻塞狀態的任務般有一個超時時間，超時后任務將解鎖。阻塞的任務不會參與調度。

標簽： freertos

上傳時間： 2022-03-19

上傳用戶：kingwide