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SDOF system distance calculate using Duhamel integral method。

说明：  数据通道剥离伪码后的载频估计,数据通道剥离伪码后的载波估计问题。对直接序列扩频系统的数据通道，假定接收设备已“完美”地锁定接收信号伪码，并实现了伪码剥离其中，信号幅度、电文、载波多普勒和载波相位均未知。电文的速率为10Hz。由于信源与接收端信号传输时延的不确定性，收到的信号电文是从某个未知时刻开始的。 利用数据文件 估计信号幅度、载波多普勒和载波相位(Data channel after stripping pseudo-code carrier frequency estimation)

it is single phase cycloconverter used in many ways to control the frequency or rather would say reduce the frequency to control the speed of motor but here iam using only resistive load because my teacher only give me this project. To use simulink please change the solver type to ode23tb

永磁同步电机矢量控制，速度环电流环采用PI控制方法(Permanent magnet synchronous motor vector control, speed loop current loop PI control method)

this code helps you to start the programmation of a dissemblance test

液压泵振动信号的小波包分解以及功率谱分析，仿真信号的Hilbert谱以及边际谱；仿真信号的小波包能量计算(wavelet packet decomposition and power spectrum of vibration signals for piston pump Hilbert spectrum and marginal spectrum of stimulated signals)

说明：  对电力系统的负荷进行预测用BP神经网络实现(BP neural network for forecasting power system load)

中科大，现代数字信号处理 第二次计算机作业(USTC, modern digital signal processing, the second computer jobs)

8PSK发射机系统的测试程序，经过4倍内插(8PSK tramsmitter)

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