svpwm

说明：   已知过热蒸汽压力和焓，查询过热蒸汽温度的函数。(Known pressure and enthalpy of superheated steam, superheated steam inquiries a function of temperature.)

非常方便的读写固定列宽的时间日期数据，读文件与存文件都是文本格式(Very convenient to read and write fixed column width of the time and date data, read the file and save files are text format)

使用低通滤波器从含有噪声的信号中提取有用的正弦波 (见实验指导书 实验九 数字滤波器中的第一题) 目的：用数字滤波器从含有高频噪声的采样数据中提取正弦信号。 要求：①输入信号为一正弦波，并加入一个白噪声的干扰来模拟信号传输中的随机干扰信号（用以模拟含有噪声采样序列）。 （模拟含有噪声采样序列具体可用正弦波信号叠加高频噪声来实现，为了使滤波效果明显，本实验的高频噪声是用高频均匀分布白噪声（Uniform）通过Butterworth高通滤波器过滤生成的，高通滤波器的截止频率设为10倍输入信号频率。） ②在程序中设计一个低通巴特沃斯滤波器，以滤除信号中的噪声分量，提取输入的正弦波信号 。 ③可调节信号滤波器的截止频率和阶数，可显示滤波前与滤波后的时域信号。 ④给出滤波前与滤波后的频谱特性的显示。 (Using low pass filter extracting useful sine wave signal containing noise(see experiment instruction digital filter in the first nine questions)Objective: to use digital filter sampling data extract containing high frequency noise sine signal.Requirements: (1) the input signal is a sine wave, and add a white noise interference to simulate the random disturbance signal of the signal transmission (to simulate contains noise sampling sequence).(simulated the sampling sequence contains noise available sine wave signal superposition of high frequency noise, in order to make the filtering effect is obvious, the experiment of high frequency noise is Uniform distribution with high frequency white noise (Uniform) by Butterworth high-pass filter to filter generated, high-pass filter cutoff frequency set to 10 times the size of the input signal frequency.)(2) in the program design a low-pass butterworth filter, in order to filter out the noise in the signal component, extract the input sine wav)

print & generate barcode

这是一个用matlab实现的语音信号预测编码中的得宾算法部分。还有实验报告。(This is a realization of using Matlab voice signals of predictive coding algorithm part in Pennsylvania. There experimental report.)

This is the model of a single phase active power filter allowing the improvement of the electric power quality in the utility side

在介质层有损耗的传输的电磁场入射反射折射的3D图(Electromagnetic field in the dielectric layer transmission loss incidence reflection refraction 3D map)

学习matlab的一本非常不错的电子文档 也是从别的网站下载的 希望对大家会有帮助

Functions for 1D and 2D Gabor Filtering with the parameters as Centre Frequencies (u,v) and the Scale (sigmax,sigmay) of the Gabor Filter

forecasting time series-matlab