When I started writing the first edition of RF Power Amplifiers for Wireless Communications,some time back in 1997, it seemed that I was roaming a largely uninhabitedlandscape. For reasons still not clear to me there were few, if any, otherbooks dedicated to the subject of RF power amplifiers. Right at the same time, however,hundreds of engineers were being assigned projects to design PAs for wirelesscommunications products. It was not, therefore, especially difficult to be successfulwith a book that was fortuitously at the right place and the right time.
標(biāo)簽： Communications Amplifiers Wireless Edition
上傳時間： 2013-11-12
上傳用戶：YYRR
Finite state machines are widely used in digital circuit designs. Generally, when designing a state machine using an HDL, the synthesis tools will optimize away all states that cannot be reached and generate a highly optimized circuit. Sometimes, however, the optimization is not acceptable. For example, if the circuit powers up in an invalid state, or the circuit is in an extreme working environment and a glitch sends it into an undesired state, the circuit may never get back to its normal operating condition.
標(biāo)簽： Creating Machines Mentor State
上傳時間： 2013-11-02
上傳用戶：xauthu
歡迎使用 PowerPCB 教程。本教程描述了 PADS-PowerPCB 的絕大部分功能和特點(diǎn)，以及使用的各個過程，這些功能包括： · 基本操作 · 建立元件(Component) · 建立板子邊框線(Board outline) · 輸入網(wǎng)表(Netlist) · 設(shè)置設(shè)計規(guī)則(Design Rule) · 元件(Part)的布局(Placement) · 手工和交互的布線 · SPECCTRA全自動布線器(Route Engine) · 覆銅(Copper Pour) · 建立分隔/混合平面層(Split/mixed Plane) · Microsoft的目標(biāo)連接與嵌入(OLE)(Object Linking Embedding) · 可選擇的裝配選件(Assembly options) · 設(shè)計規(guī)則檢查(Design Rule Check) · 反向標(biāo)注(Back Annotation) · 繪圖輸出(Plot Output) 使用本教程后，你可以學(xué)到印制電路板設(shè)計和制造的許多基本知識。
上傳時間： 2013-10-08
上傳用戶：x18010875091
This Unix C code monitors a web server every few minutes by trying to retrieve its home page. It sends you email when it can t connect, and every so often while the server is still down. It sends a final message when it comes back up. If you have email paging, just direct the email to your pager address.
標(biāo)簽： monitors retrieve minutes server
上傳時間： 2015-01-11
上傳用戶：pompey
Library of C functions that allows a program to use WinSock 2 functionality if it is available or fall back to WinSock 1.1 if it isn t.
標(biāo)簽： functionality functions available Library
上傳時間： 2015-01-18
上傳用戶：LIKE
MP3播放器： 利用API函數(shù)[mciSendString]可以輕松實(shí)現(xiàn)MP3音樂文件的播放。下面這段程序?qū)崿F(xiàn)了MP3播放的大部分常規(guī)操作，對其稍加修改，做一個100KB大小的MP3播放器輕而易舉 啟動VB程序，在窗體上放置6個命令按鈕，三個標(biāo)簽，一個公用對話框、一個進(jìn)度條、一個狀態(tài)欄和一個計時器，窗本的布置請參考附圖 按鈕"Open MP3 File"是用來打開對話框選擇MP3文件，其他5個按鈕分別為Play(播放)、Pause(暫停)、Stopplay(停止播放)、Back(向后跳躍)、Prew(向前跳躍)。Label1用來表示歌曲當(dāng)前時間；label2放在時度條的最左邊，Caption屬性為"00：00"；lable3放在時度條的右邊，用來表示歌曲總長。
標(biāo)簽： MP3 mciSendString API 播放
上傳時間： 2014-11-12
上傳用戶：silenthink
華為 Quidway 系列多協(xié)議路由器，支持 PPP、FR、X25、SLIP、HDLC 等網(wǎng)絡(luò)協(xié)議，用戶可通過各種廣域網(wǎng)線路接入 Internet 及互聯(lián)互訪。 路由器內(nèi)置安全防火墻、NAT、RADIUS 安全認(rèn)證，以及 CALL BACK 等多項互聯(lián)安全防護(hù)功能；并通過 CA 認(rèn)證協(xié)議的驗證和 IPSec 隧道協(xié)議，在 Internet 上構(gòu)建安全可靠的網(wǎng)絡(luò)通道，基于硬件的數(shù)據(jù)加密，將保密數(shù)據(jù)加密后在隧道上傳輸，加密數(shù)據(jù)有可靠的保密性但犧牲了效率；非保密數(shù)據(jù)可以通過一般性安全處理在隧道上傳輸，保證較高的轉(zhuǎn)發(fā)速率。硬件加密的算法采用專門的芯片（經(jīng)過國家相關(guān)部門批準(zhǔn)）進(jìn)行加密，密鑰長度大于 128 位，并提供高強(qiáng)度的一次一密功能。配合完全自主知識產(chǎn)權(quán)的軟硬件平臺，提供網(wǎng)絡(luò)的安全互聯(lián)和數(shù)據(jù)的安全傳輸?shù)陌踩鉀Q方案。 而 "備份中心"的可靠性備份解決方案，實(shí)現(xiàn)多種線路之間的任意備份和業(yè)務(wù)分擔(dān)，為網(wǎng)絡(luò)提供業(yè)界最堅固的保護(hù)屏障，保證網(wǎng)絡(luò)的可靠運(yùn)行。
標(biāo)簽： Quidway 華為 多協(xié)議路由器
上傳時間： 2013-12-05
上傳用戶：zsjinju
This a Bayesian ICA algorithm for the linear instantaneous mixing model with additive Gaussian noise [1]. The inference problem is solved by ML-II, i.e. the sources are found by integration over the source posterior and the noise covariance and mixing matrix are found by maximization of the marginal likelihood [1]. The sufficient statistics are estimated by either variational mean field theory with the linear response correction or by adaptive TAP mean field theory [2,3]. The mean field equations are solved by a belief propagation method [4] or sequential iteration. The computational complexity is N M^3, where N is the number of time samples and M the number of sources.
標(biāo)簽： instantaneous algorithm Bayesian Gaussian
上傳時間： 2013-12-19
上傳用戶：jjj0202
This code implements the basic functions for an I2C slave device using the SSP module. All I2C functions are handled in an ISR. Bytes written to the slave are stored in a buffer. After a number of bytes have been written, the master device can then read the bytes back from the buffer.
標(biāo)簽： implements I2C functions the
上傳時間： 2015-04-02
上傳用戶：邶刖
Copyright© 2004 Sergiu Dumitriu, Marta Gî rdea, Că tă lin Hriţ cu Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License" All brand names, product names, or trademarks belong to their respective holders.
標(biāo)簽： Permission Copyright 259 Dumitriu
上傳時間： 2015-04-02
上傳用戶：jackgao
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1
