电子科技大学硕士学位论文：AMR声码器自适应码本搜索技术及其dsp实现...

摘要:基于通信技术的列车运行控制系统(CBTC)是铁路信号的发展方向，交频分复用 OFDM)是一种无线环境下的高速传输技术，它对高速列车控制信息传输中卞要受到的由于多 径传播引起的快衰落所产生的影响有很强的抵抗能力.本文首先介绍了OFDM技术的发展和 基本原理，然后在计算机上用M atlal〕对其性能进行了仿真，仿真中将OFDM与传统的单载波 调制方式―i1，交振幅调制( 1frQAM)对抗多径十扰的性能进行了比较，最后分析了一者的仿真结果. -Abstract: Based on the communication technology train operation control system (CBTC) is a railway signal direction for the development of cross-frequency division multiplexing OFDM) is a wireless environment of high-speed transmission technology, its high-speed train control information transmission Bian be subject to the Due to the spread of multi-path fast fading caused by the impact of a strong resistance to diseases. This paper first introduces the OFDM technology development and the basic principles, and then on the computer〕 M atlal use its performance simulation will OFDM with the traditional single-carrier modulation-i1, cross-amplitude modulation (1frQAM) against multi-path interference of the 10 properties were compared with a final analysis of

中华人民共和国通讯行业标准-IPTV机顶盒技术要求-The People" s Republic of China communication industry standard-IPTV set-top box technical requirements

How to build First-Generation Wireless USB Devices-First-Generation Wireless U.S. B Devices

EMV principles you can use it as a good reference

Device Class Definition for Human Interface Devices (HID)

... 公司授权正版用户可以使用这些程序的源代码，但必须标明由易语言编写及易语言网址。 其中：连连看、易之表增强版与中华 ... 农历月历支持库 拖放支持库 正则表达式支持库 进程通讯支持库 BT下载支持库 网络通讯支持库二 超级选择夹支持库-... Genuine authorized users can use a program"s source code, but easy to be labeled by the Yi language and language website. Of which : 1000 block of Terry Avenue and replace it with an enhanced version table ... the Chinese Lunar Calendar supports the drag-and-drop support for regular expressions support for the process of communication support for BT download support for network communications support for two Super folder support for choice

高效优质声码器算法，论文中步骤很详细。值得参考-Highly efficient, high quality vocoder algorithm, the paper is very detailed steps. It is also useful

contruction Spring Mass Damper Model with Proportional plus Derivative (PD) Feedback which was done in simulink

Windows的资源管理器想必大家都用过，该程序的窗口一分为二，左边的窗口显示本机当前所有驱动器以及驱动器中的所有文件夹，当用户单击文件夹后，如果该文件夹下面还有子文件夹，则上层文件夹展开显示下级的文件夹；否则，右边的窗口显示选择文件夹下的文件。该文档提供了实现方法。-Windows resource manager must have all used, the procedure is divided into two one window. The left window shows the current machine and all Drivers Drivers of all folders when users click the folder, If the folder Read Documents folder, the folder launched upper and lower levels show the folder; Otherwise, the right to choose a window shows folder of documents. The document provides a method.

图书馆管理系统的相应论文文档,有参考价值-library management system corresponding paper documents, a reference value