zhuchenfen

说明：  对文档图像进行分割，有效去除文档的边界黑色信息，(right Document Image segmentation, effective removal of a black border documentation information,)

time difference of arrival

Wind System with Sychrounous Generator

该程序是实现一个心电信号监测的模拟波形设计，能使显示不同的界面。(The program is to achieve a simulated ECG waveform monitoring design, can display a different interface. )

一台三相感应电动机，参数分别为：230V，60Hz，12kW，4极绕线式转子， 利用Matlab软件绘制电机的机械转矩Tmech作以r/min为单位的转子转速的函数时的变化曲线(A three-phase induction motor, the parameters are: 230V, 60Hz, 12kW, 4 pole wound rotor, Drawn using Matlab software for the motor to the mechanical torque Tmech r/min as a function of the unit when the rotor speed curve )

针对强噪声背景中弱信号检测问题，在传统检测方法基础上，提出了基于联合去噪和频率调制的微弱信号检测方法。搭建自相关和小波阈值变换联合去噪系统，极大程度抑制了噪声对检测结果的不利影响。利用频率可调标准信号调制待测信号频率，使得被测信号与检测系统策动力信号的频率差满足检测条件，打破了利用Ｄｕｆｆｉｎｇ 振子检测系统只能检测与系统策动力频率相近信号的限制。(In order to solve the problem of weak signal detection in strong noise background, based on traditional detection methods, puts forward the method of weak signal detection and denoising based on frequency modulation. The self correlation and wavelet threshold transform combined de-noising system can greatly restrain the adverse effect of noise on the detection results. Use adjustable standard signal modulation signal frequency to be measured frequency, the signal detection system and the driving signal frequency difference meet the test conditions, the system can only break detection signal detection and system driving the similar frequency limit by using Duffing oscillator.)

已调试好的基于中位数算法的运动目标检测程序源代码，并给出了两种matlab实现方式(failed to translate)

five level diode clamp inverter dynamic voltage restorerfive level diode clamp inverter dynamic voltage restorerfive level diode clamp inverter dynamic voltage restorer

说明：  数值方法中的迭代算法，包括牛顿迭代等，对于学习信号处理的同学们很有帮助(Iterative algorithm for numerical methods, including Newton, etc., for students to learn useful signal processing)

svd和nmf的对比，在时间和效果对比，各个算法的特点(svd VS nmf)