fir64阶低通滤波器 data400khz sin可以为10.8khz

用delphi实现的短信后台平台监测的源码，压缩文件，没有密码。-short messge platfor monitor source code in delphi,whichi is compressed file.no password.

对分组码的chase2译码算法比较与硬判决，未编码情况下的提高了误码率增加了编码增益-right to a code decoding algorithm chase2 compared with the hard decision, no coding of the increased bit error rate increased coding gain

三点式振荡器是指LC回路的三个端点与晶体管的三个电极分别连接而成的电路，如图4-1（a）所示。图中三个电抗元件X1、X2、X3构成了决定振荡频率的并联谐振回路，同时也构成了正反馈所需的反馈网络。从相位条件看，要构成振荡器，必须满足： (1)极相连的两个电抗X1、X2性质相同。 (2)X1与X2、X3的电抗性质相反。-three-point refers to LC oscillator circuit with three transistors endpoint of three electrodes were connected with the circuit, Figure 4-1 (a) below. Figure 3 reactor components X1, X2, X3 decision constitutes a frequency of the oscillation parallel resonant circuit, but also constitutes a positive feedback for the feedback network. From Phase conditions, to constitute an oscillator, to be met : (a) very connected to the two reactor X1, X2 the same nature. (2) X1 and X2, X3 nature of the resistance-- contrary.

现代通信系统,对现代通信系统的性能和优点进行了说明,是一份不错的文档-modern communications system, the modern communications system performance and advantages of the Note, is a good document

高斯脉冲的微分。先将高斯脉冲及其前15阶导函数的幅度归一化，然后将它们同时画出。-Differential Gaussian pulse. Gaussian pulse and its first order derivative function of the first 15 normalized magnitude, and then draw them at the same time.

无线通信领域的多径洒落源码程序，值得参考-The field of wireless communications multipath洒落source program, it is also useful

数字传输仿真程序，实现完整的发送接收，包括眼图显示和星座图显示，立即使用。-digital transmission simulation program to achieve full send and receive, including eye and constellation map shows, for immediate use.

用于WLAN 802.11a的OFDM发射机的ifft/fft模块-For WLAN 802.11a-OFDM transmitter ifft/fft module

酒店管理系统,源码程序都有,很全的-Hotel Management System

IP电话计费管理系统本地版，适用于中小型话吧。通过各个接口的网关把电话连起来-IP telephone billing management system for the local version, then apply it to small and medium-sized. Through various interface gateways telephone link