OPC客户端监控程序

利用J2ME编制的记录存储体的读写过程实例-use J2ME compiled records on the storage process of reading and writing examples

用Java实现的TCAP协议，是7号信令的主要协议之一。采用JAIN标准-use Java realization TCAP protocol, it s one important protocol of signal 7,using JAIN standard

详细解释了TC35短信模块的使用和注意事项.精彩绝伦.-Explained in detail SMS TC35 module use and attention. Exuberant.

Programing for mobile devices

MATLAB中MEX命令的两个程序例子, 有详细解释, 如何在MATLAB里面调用C/C++函数-MATLAB MEX orders of the two procedures example, a detailed explanation How MATLAB inside called C/C function

A secure Intrusion detection system opnet guide

关于quartusII中如何设计上拉电阻的方法．-quartusII on how to design the widening resistance.

SIP: Session Initiation Protocol具体的讲解了rfc2543-SIP : Session Initiation Protocol specific on the rfc2543

Very Low Frequency (VLF) spectrograms show sometimes sets of lines called MLR (Magnetospheric Line Radiation) with frequency spacing close to 50 or 60 Hz. It is very tempting to attribute these MLR to Power Line Harmonic Radiation (PLHR). PLHR are the ELF and VLF waves radiated by electric power systems at the harmonic frequencies of 50 or 60 Hz. Here we show for the first time large scale MLR observed simultaneously on ground and on board a low altitude satellite which is flying over the same zone.

1)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。 2) 在改信号中加入高斯白噪声，观察滤波前后的波形变化和频谱分布情况3) 将上述滤波器改为中心频率为100KHz的带通滤波器，信号源为带外的90KHz和带内的100KHz的混合正弦信号，。 4) 用M文件实现上述低通滤波器。 -1) 2KHz and 8KHz to generate the mixed-signal, so that the signal through the above-mentioned filter, filter before and after observation of the waveform and spectrum distribution of the changes. 2) add to the signal in white Gaussian noise was observed before and after filtering and spectral waveform changes in the distribution of 3) will be replaced by the above-mentioned filter center frequency of 100KHz band pass filter, the signal source for the band and the band of 90KHz 100KHz Sine of the mixed signals. 4) achieve the above-mentioned documents with M low-pass filter.