windows ce下的串口通信程序,大家参考

about cognitive radio in wireless communication

Sigma调制功能，便可提高其频率精度，大幅降低相位噪音及带内杂散信号，并???持极高的切换速度。系统设计工程师可以利用 Delta Sigma PLL将比较频率提高到很高的水平，以大大降低相位噪音。但高比较频率会导致产生周期滑动(cycle slipping)现象。-Sigma modulation function, can increase its frequency accuracy, dramatically reducing the in-band phase noise and spurious signals, and??? Holders of high switching speed. System design engineers can take advantage of Delta Sigma PLL compares the frequency increased to a very high level in order to significantly reduce the phase noise. However, the high comparison frequency would result in sliding cycle (cycle slipping) phenomenon.

这是一个超宽带的源码， 不仅有使用说明还有论文参考-This is a source of UWB is not only an indication as to the use of reference papers

7号信令的使用说明 -Usage of SS7

OFDM仿真matlab程序代码（内附详细解释）-OFDM Matlab simulation code (with detailed explanations)

一个典型的modbus应用，它是主设备程序，值得一看-Modbus a typical application, it is the main equipment procedures, see

演示使用tapi通过语音modem进行拨号并播放和录制wav文件的例子-Examples that demonstrate how to use tapi to dial by voice modem and play and record wav files

这是组态王OPCserver的配置工具和配置说明。-This is OPCserver Kingview configuration tools and configuration instructions.

握奇CRW-X非接触式IC卡读写器操作例子。应用于非接触式CPU/M1卡片操作。-Watchdata CRW-X non-contact IC card reader operation examples. Applies to non-contact operation CPU/M1 card.

RTL8139 可能是目前最受欢迎的网卡，它的价格便宜，功能上也还能接受。本文介绍了Windows环境下RTL8139网卡的驱动编程技术，其中主要对网卡驱动中最重要的收发包过程进行了深入分析。-RTL8139 is currently the most popular card, it"s cheap, functional but still acceptable. This paper introduces the Windows environment RTL8139 Ethernet technology driven programming, which mainly driven right card the most important packet transceiver process of in-depth analysis.