Specification of Signalling System N0.7
標簽： Specification Signalling System 0.7
上傳時間： 2014-09-02
上傳用戶：stella2015
A system simulation environment in Matlab/Simulink of RFID is constructed in this paper. Special attention is emphasized on the analog/RF circuit.Negative effects are concerned in the system model,such as phase noise of the local oscillator,TX-RX coupling,reflection of the environment, AWGN noise,DC offset,I/Q mismatch,etc.Performance of the whole system can be evaluated by changing the coding method,parameters of building blocks,and operation distance.Finally,some simulation results are presented in this paper.
標簽： environment constructed simulation Simulink
上傳時間： 2014-01-09
上傳用戶：zhangliming420
0_1背包問題,回溯法解背包問題 0-l背包問題是子集選取問題。一般情況下，0-1背包問題是NP難題。0-1背包 問題的解空間可用子集樹表示。解0-1背包問題的回溯法與裝載問題的回溯法十分類 似。在搜索解空間樹時，只要其左兒子結點是一個可行結點，搜索就進入其左子樹。當 右子樹有可能包含最優解時才進入右子樹搜索。否則將右子樹剪去。設r是當前剩余 物品價值總和；cp是當前價值；bestp是當前最優價值。當cp+r≤bestp時，可剪去右 子樹。計算右子樹中解的上界的更好方法是將剩余物品依其單位重量價值排序，然后 依次裝入物品，直至裝不下時，再裝入該物品的一
上傳時間： 2014-01-17
上傳用戶：小碼農lz
:針對不可否認L-L-C-Z門限代理簽密協議中存在的安全缺陷，提出了一個改進的門限代理簽密協議.通過 對L-L-C-Z門限代理簽密協議的密碼分析，利用接收方修改公鑰的方法，計算出任意消息的有效偽造簽密結果.利 用類似于縮短的數字簽名標準(SDSS)的安全技術，以及通過公鑰驗證簽密結果的技術，給出一個新的改進協議.安 全分析結果表明，與L-L-C-Z門限代理簽密協議相比，該改進門限代理簽密協議能夠承受接收方公鑰替換攻擊.改進的門限代理簽密協議利用接收方公鑰而不是私鑰來驗證簽密結果，其驗證過程能向第三方公開.
上傳時間： 2013-12-21
上傳用戶：四只眼
This book is a hands-on introduction to the principles and practice of embedded system design using the PIC microcontroller. Packed with helpful examples and illustrations, it gives an in-depth treatment of microcontroller design, programming in both assembly language and C, and features advanced topics such as networking and real-time operating systems. It is accompanied by a CD-ROM containing copies of all programs and software tools used in the text and a `student version of the C complier Designing Embedded Systems with PIC Microcontrollers: Principles and Applications is ideal for students of electronics, mechatronics and computer engineering. Engineers in industry and informed hobbyists will also find this book a valuable resource when designing and implementing both simple and sophisticated embedded systems using the PIC Microcontroller.
標簽： introduction principles hands-on embedded
上傳時間： 2014-01-17
上傳用戶：wuyuying
this the minarm system that ihad been designed
標簽： designed minarm system this
上傳時間： 2014-12-22
上傳用戶：hn891122
M-System公司最新的DOC電子盤的TFFS驅動程序,支持最新的DOC芯片和MSystem電子盤
上傳時間： 2015-11-23
上傳用戶：源弋弋
c language realization national transportation consultation analogous system, for details sees reported
標簽： transportation consultation realization analogous
上傳時間： 2014-10-28
上傳用戶：shinesyh
windows開源代碼 Microsoft Windows is a complex operating system. It offers so many features and does so much that it s impossible for any one person to fully understand the entire system. This complexity also makes it difficult for someone to decide where to start concentrating the learning effort. Well, I always like to start at the lowest level by gaining a solid
標簽： Microsoft operating features windows
上傳時間： 2015-11-24
上傳用戶：zhuyibin
special knowledge of linux (embeded system)
標簽： knowledge special embeded system
上傳時間： 2013-12-12
上傳用戶：helmos
