用频率抽样法设计FIR滤波器。

TCP/IP的网络图，介绍了，TCP/IP 的结构。是初学者需要了解的很必要的网络资料，需要看的朋友，快下！-TCP/IP network, introduced the TCP/IP structure. Beginners need to know is a very necessary network information needs as a friend, under fast!

这是个经典的用api进行串口编程的例子- This is classical carries on the string mouth programming with api the example

这是在windows上使用modem通信的例子程序，有很高的实用价值，同时也可以学习到tapi的编程方法-This is the windows on the use of the example of modem communications procedures with a high degree of practical value, they can also learn the programming methods TAPI

Polarization beam splitters and 3dB couplers are used to construct a home-made90 ° optical hybrid, by  which polarization diversity optical coherent receiver is carried out with single-ended detection.A10Gb / s oscillation multiplexed differential phase shift keying (DPSK) signal is transmitted through280km Standard single- mode fiber (SSMF) using erbium-doped fiber amplifier (EDFA) amplification, and no error bits are measured in th result.

symbian 中 滚动条的使用 可以用在亮度，语音大小，时间等的调度上的源代码。-symbian in the use of scroll bars can be used in light, voice, size, time scheduling at the source code.

用Visual Basic开发GPS的串行通信程序，实现可视化 -Develops GPS with Visual Basic serial communication procedure

七号信令原理讲解，大公司出的培训教材，好！-Teaching materials about theory of ss7 from a big company.

ADSL时域均衡器,包括Matlab程序和TI C62x DSP处理器上运行的C程序-ADSL Time-Domain Equalizer running on a Texas Instruments C62x digitial signal processor

Software for serial port comunnication

VFP Microsoft Comm 控件来解决串行口读数据这一关键问题-VFP Microsoft Comm control to solve the serial data reading the key issue