OFDM 发射机

江苏省一个科技公关项目的一部分,利用西门子profibus(im183)开发包,开发了一个PROFIBUS-DP从站,实现通讯功能-Jiangsu Province, a technology public relations part of the project, using Siemens Profibus (im183) development kits, developed a PROFIBUS-DP from the station to achieve communication

串口通讯实现文件传送，对vb下学习串口通讯有很好的借鉴-com file

自己编写的一个聊天软件，比较简单，但很实用。-I have written a chat software is relatively simple, but very practical.

BOrgTec GPSRS232 ActiveX Control提供如下特性：分析NMEA串，也就是说包含在NMEA序列里的数据将被提取出来。数据由ActiveX事件提供。NMEA序列从与PC串口连接的GPS接受器中获得。可以配置串口的参数，以与多种GPS接受器进行通讯。配置ActiveX Control显示数据的字体颜色和计量单位。这些特性使你在应用中加入GPS功能变得简单。适用语言：D5-BOrgTec GPSRS232 ActiveX Control provides the following features: Analysis of NMEA string, that is included in the sequence in the NMEA data will be extracted. Data provided by the ActiveX events. NMEA sequence from the PC serial port to connect with the GPS receiver gain. Serial port parameters can be configured to a variety of GPS receivers and communication. ActiveX Control to configure the font color display data and units of measurement. These features allow you to add in the application of GPS functionality simple. The application of the language: D5

基于STM32F103C8T6的LoRa模块通信,使用ZLG的SX1276方案，SX1276/77/78 收发器主要采用LoRaTM 远程调制解调器，用于超长距离扩频通信，抗干扰性强，能够最大限度降低电流消耗。借助升特的LoRaTM 专利调制技术，SX1276/77/78 采用低成本的晶体和物料即可获得超过-148dBm 的高灵敏度。此外，高灵敏度与+20dBm 功率放大器的集成使这些器件的链路预算达到了行业领先水平，成为远距离传输和对可靠性要求极高的应用的最佳选择。相较传统调制技术，LoRaTM调制技术在抗阻塞和选择性方面也具有明显优势，解决了传统设计方案无法同时兼顾距离、抗干扰和功耗的问题。

海南联通的一个SGIP协议短信API的例子程序，从事软件开发人员-Hainan Unicom an agreement SGIP SMS API examples procedures, software developers

OPNET仿真实例，有助于初学者的快速学习。-OPNET simulations help beginners learn fast.

关于混沌时间序列的降噪文献。对研究此类问题的特别有用。-On noise reduction of chaotic time series literature. The study of such issues particularly useful.

内置 ；支持MP3、AAC 、AAC+、WAV等格式的音频文件，不能播放320 Kbps的MP3文件，最高只能支持224Kbps，支持新建播放列表和自动重复播放不具备均衡器调节，支持低音增强模式，并且具备7个低音增强级别供用户选择，让用户在欣赏不同风格歌曲时选择合适的低音级别供用户选择，让用户在欣赏不同风格歌曲时选择合适的低音级别，支持环绕立体声（SRS） -built; MP3, AAC, AAC, WAV format audio files, 320 Kbps not play MP3 files, can only support a maximum 224Kbps, the new playlist support and automatic repeat players do not have EQ adjustment, bass enhancement-mode support, and with seven bass enhancement levels for users to select, to allow users to enjoy the songs of different styles to choose a suitable level of bass for users to select, to allow users to enjoy the songs of different styles to choose a suitable bass-level support surround sound (SRS)

非常详细地分析了linux下串口通信的程序，有具体的方法思路以及完整的源代码。-A very detailed analysis of serial communication under linux procedures. And there is a specific way of thinking, as well as complete source code.