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说明：  matlab ocr for beginner

说明：  用MatLab，编写用Hopfield网络求 解TSP问题（旅行商问题）的程序(城市 数目≥5)(Using MatLab, prepared using Hopfield network to solve TSP problem (TSP) process (the number of cities with ≥ 5))

1. 给一段原始的语音信号（可以是自己录制的一段语音），加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声（幅度自己可以选择），用窗函数设计一滤波器（要求最小阻带衰减为50dB）对加噪后的语音信号进行滤波，画出滤波器的频率响应曲线，画出滤波前后的时域图和频谱图。 需要用到的函数： fir1 用窗函数设计FIR滤波器的函数 2. 用GUI设计一界面（如图1所示）完成如下功能： 1） 输入一语音信号，画出语音信号的时域图和频谱图； 2） 对语音信号加噪处理，画出加噪后的时域图和频谱图； 3） 给定滤波器的性能指标，采用几种不同的方法设计滤波器对加噪信后进行滤波，画出各滤波器的频率响应曲线，画出滤波后的时域图和频谱图。 (1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )

本程序为EMD分解程序，包含子程序，可直接运行(EMD decomposition process)

This paper presents digital simulation of ZVS half bridge DC to DC converter with modified PWM control. The switching losses are reduced by using soft switching. Conventional and duty cycle shifted PWM DC to DC converters are simulated using matlab simulink and the results are presented. The principle of operation and the key features of modified PWM DC to DC converter are also presented.

捷联式惯性导航的角速率匹配，使用matlab语言编写(Strapdown inertial navigation of angular rate matching )

CODE MATLAB ACO BEE COLONY SYSTEM FOR TSP PROBLEM

Pso coding with Neural network

在MATLAB中利用FFT函数来进行变换，其中利用到了HAMMING窗(Using FFT function in MATLAB to carry out transformation, which used to HAMMING window)

matlab 教程 matlab的入门到精 matlab详细代码范例(Matlab tutorial matlab approaches to fine matlab detailed example code )