idtcwt

小波变换既具有时频分析特性，又具有多分辨率特性，有利于各分辨率中不同特征提取(Frequency wavelet transform analysis both properties, but also has multi-resolution characteristics conducive to the resolution of the different characteristics of each extraction)

Butterworth Bandpass Filter

说明：  两自由度系统振动模型，初级学习模型，Simulink(Two-degree-of-freedom system vibration model, primary learning model, Simulink)

说明：  计算平面桁架的频响函数，求得某一节点的速度，加速度。(Frequency response function calculation plane truss, a node obtained velocity and acceleration.)

声波波场快照程序，可以自己再做进一步的修改。非常好用。(Acoustic wave field snapshots Program)

说明：  主要指令：butter（产生巴特沃斯滤波器）；freqz（绘制幅频、相频曲线）；zplane（绘制零、极点图）；ss2zp（状态方程变零、极点）；zp2tf（零、极点变分式多项式）。(Main instruction: butter (produced bart wo filter) Freqz (draw amplitude frequency, phase frequency curve) Zplane (draw zero, poles chart) Ss2zp (state equation is zero, poles) Zp2tf (zero, pole change fraction polynomial). )

rake接收机仿真程序，内含三种合并方式（最大比、等增益、选择式合并）的比较(rake receiver simulation program that includes the merger of three methods (maximum ratio, equal gain, Selection Combination) in Comparison)

This is a categorized compilation of tips for the MATLAB programmer. Items to help you to browse through them and find information that is useful. Many of the tips include a reference to specific MATLAB documentation that gives you more complete coverage of the topic.

三相异步电机的直接转矩控制matlab仿真模型，发出来供大家学习、指正，希望对你有用。(The simulink model of 3-phase iduction motor DTC control，it is maybe useful to your study.)

IIR滤波器设计 设计一个巴特沃思低通滤波器，其技术指标为：3dB带宽为，阻带截止频率为，阻带衰减大于30dB，采样间隔T=10us。(IIR filter design to design a Butterworth low-pass filter, its technical indicators: 3dB bandwidth, stopband cut-off frequency, stop-band attenuation greater than 30dB, sampling interval T = 10us.)