生成2KHz和8KHz的混合信号，使该信号通过上述滤波器，观察滤波前后的波形变化和频谱分布情况。...

移动电话主要采用频率复用，但分配给移动电话的频段很少，远不能满足用户的需要。 因此就提出将地区划分成小区，称为蜂窝（Cell），每个蜂窝内使用一组频率，相隔一段距离后，相同的频率又可重复使用。 -The main use of mobile phone frequency reuse, but allocated to the small-band mobile phone, far from being able to meet the needs of users. Therefore proposed to be divided into residential areas, known as cellular (Cell), each use a set of cellular frequencies, separated by some distance, the same frequency can be reused.

微软亚洲研究院论文：一种用于保证端到端统计型服务质量要求的接纳控制方案 -Microsoft Asia Research Institute thesis : a guarantee end-to-end statistics for the services of acceptable quality control program

在Max+plusΠ环境下用VHDL语言编写实现基于CPLD的CMI编译码器设计-In Max+ plusΠ environment using VHDL language CPLD-based design of CMI codecs

一套易用的网络通信包，以C＋＋形式对功能进行封装。对WinSocket和NamedPipe的API函数进行封装，并且提供部分API函数完成连接的建立和数据检测功能。-set of easy-to-use communications network packets to C++ form of a wrapper function. Right Winsocket and NamedPipe API function package, and provided some API function linking the establishment and data detection capabilities.

Visual C++高级开发范例解析第二章ActiveX源码-Visual C++ Advanced Development ActiveX sample chapter source analysis

视频入门－从模拟讲到DTV的详细介绍.zip 很详细的vedio技术资料.-video entry-from analog to DTV referred to the detailed briefing. Zip vedio very detailed technical information.

javabluetooth-src-200310

正交码的编吗程序，可达到满分集增益，编吗速率可达到3/4，

有名的串口监视工具 portmon 很多的好的串口通讯协议一开始都是靠监视别人的成熟实例而来的-Well-known serial port monitoring tool for a lot of good portmon serial communication protocols are one started surveillance on other people

可以自动探测你所处的网络NAT类型-can automatically detect where you are in the type of network NAT