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In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.-In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

3GPP协议为通信编程的重要协议之一，该版本为TS25.462-7-3GPP agreement Communication Programming One of the key agreements, the version of TS25.462-7

课程设计做的PLL，里面有关线性和非线性的都有，大家可以-O 课程 设 计 的 PLL, 里面 Tang 关 Cave Cave性和非性的都 Tang, 大家可 Luk

基于奥地利微电子的as3992芯片的超高频读写器源代码，主控制芯片为c8051f340，是用频率范围850MHz以上，读取距离0-3M.

本文比较了宽带传输方案中SC_FDE系统与OFDM系统的性能-This article compares the broadband transmission program SC_FDE system and OFDM system performance

一个vc下oci编程的例子-Oci programming under a vc example

其中为本人做媒体项目时搜集的一些有关rtp和h264方面的资料.-which I do for the media item collected some of the rtp and h264 of information.

矩阵主机控制程序，利用键盘钩子猎取键盘事件，根据事件将控制指令发送到矩阵主机-Matrix mainframe control procedures, the use of a keyboard hook to hunt keyboard, the incident will be controlled under the instructions sent to the host matrix

XComDrv是个通讯包，包含两个控件：TXComm，封装了一个通讯设备的若干特性；TXModem，MODEM与MODEM通讯的控件。最新的版本支持：定制流控制；任意波特率；完全的数据控制；指定事件字符；收/发数据；插件。TXModem可以用来：向MODEM设备发送AT指令；修改MODEM寄存器；拨号；连接；断开。最新版本包括XAsync v.1.2，异步（覆盖式）操作单元。功能无限制。源代码：包含，还有EXE演示。适用语言：CB4 CB5 D4 D5-XComDrv is a communications package that contains two controls: TXComm, Packaging, a number of characteristics of communications equipment TXModem, MODEM control communications with the MODEM. The latest version supports: customized flow control arbitrary baud rate incomplete data control designated events characters admission/fat data plug. TXModem can be used to: MODEM equipment to send AT commands amend MODEM register dial-up connection disconnected. The latest version include XAsync v.1.2, Asynchronous (cover type) operation unit. Features unlimited. Source code: contains, as well as EXE demo. Applicable language: CB4 CB5 D4 D5

这个源代码是G711解码程序。欢迎大家下载、试用。谢谢大家的支持！