利用Duhamel求解elcentro地震波作用下的地震加速度反应谱

Program to compute a Hard c means given a input file.

说明：  使用Python语言，基于pynput模块开发的，按键记录和重播的简易按键精灵。(Using Python language, based on pynput module development, key recording and replay of the simple key wizard.)

Document describing the Power Flow, a matter of Power Systems Analysis.

sigmatel公司的36XX系列完整开发包，有了这个开发包作为基础，你就可以这上作一些UI,驱动的更改，这是要几万元才能卖到的开发包哦(36XX Series SigmaTel)

一篇讲述超奈奎斯特传输的经典文献，主要讲解超奈奎斯特传输的多载波系统架构(One about the super-Nyquist transmission of classical literature, mainly on super-Nyquist transmission of multi-carrier system architecture)

boc信号的功率谱绘制程序，以及gps的bpsk信号的功率谱比较。(boc power spectrum drawing program, and the bpsk gps signal power spectrum comparison.)

dtmf signaling source code using matlab

OMP信号恢复，可用于压缩传感器语音OMP信号恢复模拟(OMP signal recovery)

说明：  2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

隐藏程序工具源码例程，程序结合易语言扩展功能支持库，调用API函数实现隐藏程序工具。(Hide tool source routines, programs combined with easy language support library extensions , call the API function implementation hiding tool.)