USB_to_Serial vb与usb转串口的通讯

使用USR和RockWell Modem的语音Modem程序 -Modem program Using 3Com USR Modem and RockWell Modem

simulink model to demodulate fm signal

Hello these pdf file is an ebbok for simulation wireless communication

低通切比雪夫I型数字滤波器阶数为7阶 在2000Hz通带表现截止在2500Hz阻带边界在过渡带和阻带之间是单调下降波形. -Low-pass Chebyshev Type I digital filter order is 7  in the 2000Hz band pass-band cut-off at 2500Hz stopband performance in the transition zone and the boundary between the monotonic decline in stopband wave.

PPP拨号上网协议栈，通过串口编程，实现PPP拨号网络底层协议以及TCP/IP协议，主要用于GPRS，CDMA，电话拨号等通信领域。-PPP dial-up Internet protocol stack, through serial programming, PPP dial-up network to achieve agreement and the underlying TCP/IP protocol, mainly for GPRS, CDMA, such as dial-up telephone communications.

这是我以前做编码方式的时候的一些有用的程序，传上来供大家共享-This is the way I used to do when coding a number of useful procedures, Chuan-up for all to share

wcdma中turbo码的实现。方法简单，可以直接进行仿真-the achieve of the turbo in wcdma

实现输入、输出都为少数点时的FFT算法,这些程序是用C语言来实现的

ISAG SP业务开发 包括短信 彩信 WAP等文档 对SP开发很有用-ISAG

内容是关于 两个单片机之间的通信.一个做主机,另一个做从机.从机负责显示液晶显示(LCD1602)时钟(DS12887).通过上位机指令控制,并调整时间.并且控制闹钟的时间