MSComm 控件通過串行端口傳輸和接收數(shù)據(jù)，為應(yīng)用程序提供串行通訊功能。MSComm控件在串口編程時(shí)非常方便，程序員不必去花時(shí)間去了解較為復(fù)雜的API函數(shù)，而且在VC、VB、Delphi等語言中均可使用。 Microsoft Communications Control（以下簡稱MSComm）是Microsoft公司提供的簡化Windows下串行通信編程的ActiveX控件，它為應(yīng)用程序提供了通過串行接口收發(fā)數(shù)據(jù)的簡便方法。具體的來說，它提供了兩種處理通信問題的方法：一是事件驅(qū)動(dòng)(Event－driven)方法，一是查詢法。
上傳時(shí)間： 2015-11-14
上傳用戶：tianyi223
參考網(wǎng)上的提供的代碼,我把uCosII移植到MSP430f149上,分三個(gè)任務(wù),分別是485通訊,鍵盤掃描,LED顯示,可供參考!- Refers to code which on-line provides, I transplant uCosII to MSP430f149 on, divides three duties, respectively is 485 Communications, scanning, LED demonstrated
標(biāo)簽： on-line uCosII Refers which
上傳時(shí)間： 2013-12-11
上傳用戶：xieguodong1234
Author: wei liu Summary: simulation of binary and non-binary bch decoder MATLAB Release: R14SP1 Required Products: Communications Toolbox Description: simulation of binary bch decoding algorithm for bch(n, k) with t bits error correction capability.
標(biāo)簽： simulation non-binary Summary Release
上傳時(shí)間： 2014-01-10
上傳用戶：frank1234
IT++ is a C++ library of mathematical, signal processing and communication system routines/functions. Its main use is in simulation of communication systems or for performing research in the area of Communications.
標(biāo)簽： communication mathematical processing functions
上傳時(shí)間： 2014-01-13
上傳用戶：han_zh
This book is concerned with the description and analysis of the global second generation (2G) mobile radio systems: the Global System of Mobile Communications (GSM) and cdmaOne. A subsidiary goal is to examine how these two systems will evolve into third generation (3G) ones with their requirement to support multimedia mobile radio Communications.
標(biāo)簽： description generation concerned the
上傳時(shí)間： 2014-01-14
上傳用戶：2467478207
We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation, phase-shift keying, and pulse amplitude modulation Communications systems.We study the performance of a standard CFO estimate, which consists of first raising the received signal to the Mth power, where M is an integer depending on the type and size of the symbol constellation, and then applying the nonlinear least squares (NLLS) estimation approach. At low signal-to noise ratio (SNR), the NLLS method fails to provide an accurate CFO estimate because of the presence of outliers. In this letter, we derive an approximate closed-form expression for the outlier probability. This enables us to predict the mean-square error (MSE) on CFO estimation for all SNR values. For a given SNR, the new results also give insight into the minimum number of samples required in the CFO estimation procedure, in order to ensure that the MSE on estimation is not significantly affected by the outliers.
標(biāo)簽： frequency-offset estimation quadrature amplitude
上傳時(shí)間： 2014-01-22
上傳用戶：牛布牛
This paper investigates the design of joint frequency offset and carrier phase estimation of a multi-frequency time division multiple access (MF-TDMA) demodulator that is applied to a digital video broadcasting—return channel system via satellite (DVB-RCS). The proposed joint estimation algorithm is based on the interpolation technique for two correlation values in the frequency and phase domains. This simple interpolation technique can significantly improve frequency and phase resolution capabilities of the proposed technique without increasing the number of the correlation values. In addition, the overall block diagram of a digital Communications receiver for DVB-RCS is presented, which was designed using the proposed estimation algorithms. Index Terms—Carrier phase estimation, DVB-RCS, frequency offset estimation, interpolation, joint estimation, MF-TDMA.
標(biāo)簽： investigates estimation frequency carrier
上傳時(shí)間： 2015-12-30
上傳用戶：ls530720646
With this foundation, you explore a development model that addresses the complete range of issues in the design of embedded Communications software, including real-time operating systems, hardware and software partitioning, layering, and protocol stacks.
標(biāo)簽： development foundation addresses complete
上傳時(shí)間： 2016-01-16
上傳用戶：zyt
自己編程實(shí)現(xiàn)多引導(dǎo) 如果你是一個(gè)計(jì)算機(jī)用戶相信你一定安裝過操作系統(tǒng)，當(dāng)你用久了一個(gè)操作系統(tǒng)，你可能會(huì)安裝一個(gè)新的操作系統(tǒng)，但你往往希望保留現(xiàn)在的操作系統(tǒng)。比如當(dāng)你有了一個(gè)windows98，你可以在上面再安裝windows2K或是windowsXP，這是因?yàn)閃indows的NTloader可以認(rèn)識(shí)比自己更早的操作系統(tǒng)，所以能夠給你保留先前的操作系統(tǒng)。但是如果你現(xiàn)在已經(jīng)擁有了一個(gè)windows2K或是windowsXP你要在硬盤上再裝個(gè)WINDOWS98甚至一些懷舊派人士想在上面安裝一個(gè)DOS6.22，此時(shí)又該怎么辦呢？你往往會(huì)用到第三方軟件，比如V Communications，.inc的System Commander系列，PowerQuest Corporration的BootMagic等等都是很好的選擇。這些軟件的將硬盤分區(qū)設(shè)置為兩個(gè)或是兩個(gè)以上的主分區(qū)，（也就是我們所說的雙“C”盤，或是多“C”盤），把不同的操作系統(tǒng)安裝到不同的主分區(qū)，通過激活不同的分區(qū)來實(shí)現(xiàn)多重引導(dǎo)，其優(yōu)點(diǎn)是安全穩(wěn)定，一旦一個(gè)操作系統(tǒng)癱瘓，一點(diǎn)不影響其他操作系統(tǒng)，個(gè)人認(rèn)為值得推薦。 本文不是一篇多操作系統(tǒng)實(shí)現(xiàn)的經(jīng)驗(yàn)介紹，因此有關(guān)BootMagic等第三方軟件的使用我就不再浪費(fèi)篇幅來介紹，我要給大家分析的是此類軟件的實(shí)現(xiàn)原理。
標(biāo)簽： 編程實(shí)現(xiàn) 用戶 操作系統(tǒng) 計(jì)算機(jī)
上傳時(shí)間： 2014-01-26
上傳用戶：change0329
用Visual C++6.0編程工具，使用Microsoft Communications Control控件（MSComm控件）進(jìn)行串行通信程序的開發(fā)。
上傳時(shí)間： 2014-01-05
上傳用戶：hullow
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