电话拨号程序，附有简易的拨号键盘，能通过modem通话

CMX868 MODEM 远程通信源码 推荐您参考-CMX868 MODEM remote communication source recommend that you refer to

AT命令整理(打电话与收发短信),因为我做的这个模块只用打电话与发短信的功能 -AT command processing (send and receive phone calls with the message), because I make this module only call and send text messages function

qpsk在加性高斯白噪声下的误码率仿真 -qpsk BER simulation

ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。 本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该 电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。-ADSL access technology has become the most important end-user broadband access technology. ADSL technology is the key to ADSL modem, that is, ADSLMODEM. ADSL modem client driver is a broadband power amplifier, the distortion that he can not enlarge and transfer telephone lines have been encoded digital signal. Based on the ADSL modem driver characteristics, structure and performance analysis, we give a ADSL client realize MODEM driver circuit. The circuit has an excellent high-frequency power amplifier of the dual-L T1886, even though high in the configuration of the closed-loop gain network also able to maintain low distortion.

Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold. Control of the local phone handset, microphone and speaker of the modem Send and receive faxes Play and record on the phone line or sound card Play music in background mode Silence detection VU Meter Wave sound editor that allows your end-users to edit their own sound files. Voice recognition and voice synthesis. Full control over the serial port device ZModem file transfer utility File compression and encryption utility

LDPC编码的GFQ程序源代码，用于信道编码，可以编码LDPC矩阵，并进行交织译码-LDPC coding GFQ source code for channel coding, LDPC coding matrix, Decoding and intertwined

qamTx.rar:Modem Transmitter and Channel Simulator的例程,实用程序-qamTx.rar: Modem Transmitter and Channel Simulator of routines, practical procedures

实现QPSK和BPSK的调制解调程序，仅供参考

车载终端汇编程序-truck terminal assembler

本程序需要调制解调器的支持，否则可能失败，需要调制解调器支持语音传输，本程序在子弹头调制解调器下调试通过，通话时通过麦克风和话筒来进行。-This procedure required the support of a modem, or may fail to support the required voice modem, the program under the debug modem bullet passed through a microphone and call for the microphone.