ML2007b_CN_071024

基于MATLAB平台的PWM调制正弦波的快速傅里叶分析(his model simulates and computes Fourier analysis of PWM based sinusoidal waveform. Fundamental frequency can be changed in model properties. Amplitude modulation index and frequency modulation index can be adjusted in Simulink model directly.)

Wavelet denoising For using this code need to use signal toolbox and general toolbox in your matlab In the first part of this assignment, we asked to obtain a (black-and-white) digital image of size 512 by 512 and then generate noisy image by adding a Gaussian noise but under the condition of having SNR=20dB by select the suitable value of variance for Gaussian noise formula. Second step is performing wavelet denoising using the hard thresholding (Use the db 6 for four levels) in the condition of finding the optimal thresholding value of T in terms of the SNR obtained. It means that, we should find the highest SNR value by finding the suitable value for threshold. Then we asked to do the same process but this time using soft thresholding. Finally for the last part of question one, we should compare the results of the obtained SNR with the recommendations of 3*sigma for the hard thresholding and 3/2*sigma for the soft thresholding.

使用simulink对锂电池进行建模，电池的参数随SOC的变化而变化，精度很高(Simulink modeling of lithium batteries, battery parameters change with the changes in the SOC, high precision)

利用matlab计算图像变化前后的信噪比！(Use the matlab to calculate the Signal to Noise Ratio!)

惯性器件的旋转矢量姿态解算，三子样的旋转矢量，有真实数据(Rotation vector of inertial devices attitude solution)

Three phase space vector pulse width modulation using generalised multiphase space vector aproach

利用matlab完成了对语音信号的重建，并针对重建信号进行了包括变速，变调等多种处理，适合初学语音信号的人参考。(Using matlab complete reconstruction of the speech signal, and for the reconstruction of signals, including a variety of processing speed, pitch, etc., suitable for beginners who voice signal reference.)

The TCRT1000/ TCRT1010 have a compact construction where the emitting-light source and the detector are arranged in the same direction to sense the presence of an object by using the reflective IR-beam from the object. The operating wavelength is 950 nm. The detector consists of a phototransistor.

这里有卡尔曼滤波原理及公式陈列，编程实现，外加外界白噪声的影响，旨在加强对卡尔曼滤波的直觉理解与应用。(There Kalman filter theory and formula display, programming, plus white noise of the outside world to enhance intuitive understanding of the Kalman filter and its application.)

一个十分简短却非常有用的产生组合数的程序。(A very brief but very useful for selecting the combination of several procedures.)