低通切比雪夫I型数字滤波器阶数为7阶 在2000Hz通带表现截止在2500Hz阻带边界在过渡带和阻带之间是单调下降波形....

该程序驱动MODEM反复拨打某一个电话号码.使用了简单的AT命令,通过COM口与MODEM通讯.-the procedure repeated MODEM Driver Call a telephone number. Use a simple AT commands, through COM ports with modem communication.

DVBU T详细标准，尤其是COFDM技术参数。

nmea0183识别程序-nmea0183 identification procedures

MAX274有源滤波器的设计应用。　介绍MAXIM公司系列芯片MAX274的工作性能与特点,并详细介绍了MAX274滤波器的公式和软件设计方法-MAX274 Application of active filter design. Introduction MAXIM company MAX274 chip performance and characteristics, and detailed the MAX274 filter formula and software design methods

多方会话消息之实例讲解 -multi-session news examples to explain the m ulti-session news examples will explain the multi- so news on the case

IEC61970数据集成规约扩展与应用。 IEC61970-IEC61970

应用背景模拟AODV和AOMDV网格网络中的路由协议关键技术路由协议（AODV和AOMDV），网络模拟器2，移动网格，Tcl/Tk脚本编码，netwoork动画师（NAM），通过对上述代码的帮助我们可以分析 ；平均抖动等性能指标，平均端到端延迟，吞吐量。

CDMA地计数介绍,还有一些公司地产品策略-CDMA to introduce counting, there are some companies and product strategy

RS232串口调试 Rs232串口开发 Visual C++ 6.0缘代码-RS232 back versed in试Qin Kai Hee RS232 back versed in Visual C++ 6.0 fascine Tungsten measurements

有关QPSK调制解调的仿真程序，包括基带输入波形及其功率谱、QPSK调制信号及其功率谱、AWGN信道输出及其功率谱、通过瑞利信道之前和之后的信号星座图 6)在高斯白噪声和瑞利衰落信道条件下的误码性能以及高斯白噪声的理论曲线，所有误码性能曲线在同一坐标比例下绘制-Relevant QPSK modulation and demodulation of the simulation program, including the baseband input waveform and its power spectrum, QPSK modulation signal and its power spectrum, AWGN channel output and its power spectrum, through the Rayleigh channel before and after the signal constellation of Figure 6) in high- Adams white noise and Rayleigh fading channel under the conditions of BER, as well as the theory of Gaussian white noise curve, all the BER performance curve in the same proportion of coordinates under the map