利用h323协议和OPENH323开源库开发而成

GPRS主台软件，支持DL/T645协议， 实现抄收电表软件。-GPRS Main Desk software, support DL/T645 agreement, realize Collecting meter software.

多FFT解调可与相干或差动相干检测可以应用。差异相干检测可能对时变信道的优点，其中相干检测患有通道  估计误差。最好是在频域中执行的差分编码，即在整个OFDM载波。在可供下载的源代码包在http://millitsa.coe.neu.edu/?q=projects，多FFT解调与差分相干检测和多个接收元件（空间分集）来实现。

A detection software

三种模拟调制与解调的算法，三种模拟调制为：AM，FM，SSB-Three types of analog modulation and demodulation algorithms, three types of analog modulation for: AM, FM, SSB

本程序实现了一个基本的基于2psk的误码率仿真程序，比较适合初学通信的人士学习。-This program realize a simulation based on Bpsk modulation, and it is suitable for any beginner of telecommunication

SYMPCHUNK sets the number of symbols demodulated at once with a constant carrier frequency and symbol timing offset. This is a fundamental decoder parameter that establishes its carrier and symbol timing tracking bandwidth. Set it too low and the demodulator can"t accurately determine carrier frequency and symbol timing on a noisy signal. Set it too high and the demodulator may not be able to track large symbol rate offsets caused by Doppler shift and/or A/D or spacecraft clock errors. Or it might have trouble tracking high rates of change in the carrier frequency due to Doppler acceleration.The current value of SYMPCHUNK is 4*N1 = 512, where N1 = 128 is the order of the convolutional interleaver. 512 symbols is 512 milliseconds at 1000 symbols/sec, giving a frequency/time determination SNR that is 10*log10(512) = 27 dB greater than the Es/N0, not counti

一个简单的用JAVA实现的屏幕抓图(源代码)-with a simple screen JAVA Previously (source code)

并口通讯,也可以对其他端口通讯.不需要安装驱动.直接使用,只有编译后才能正常运行.-Parallel Communications, can also port to other communications. Drivers do not need to install. The direct use, Only the compiled to normal operation.

又一个来电显示程序-Another phone-income viewing program.

MT6268 Virtual Serial Driver