MIT_BIH_read

this is a program for measuring instantaneous angular speed from pulse signal. this file contents source code for instantaneous angular speed estimation.

matlab求解最优潮流的程序，这个最优潮流可以计算电力系统的潮流(matlab to solve the optimal power flow program, the OPF can calculate power flow)

我写的重要代码,一个关于matlab，制作用户界面的程序，很好的学习代码(IT IS VERY USEFUL， about the matlab and other languages.it is very useful.On matlab, the production of user interface procedures, good learning code)

使用matlab进行雷达系统性能的分析与设计，里边有详细的理论分析以及matlab代码，非常有助于做雷达仿真(Radar system analysis and design using matlab,much detail about the theoretical derivation and matlab source code)

智能控制（刘金琨版）第8章第1题课后练习MATLAB程序(Intelligent Control (Hangzhou Press Edition) Chapter 8 Question 1 Homework MATLAB program)

在背景为纯色的情况下,能够用色调来代替Alpha,而色调虽然是特效,但是他实际上只是颜色的复合,结果让文本显示单一颜色,调用(In the background for the pure color, can coloring attune instead of Alpha, and tonal though is the special effects, but he is actually the color composite, the result let text display a single color, calls)

Moment s Legendre algorithm

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))

step function using matlab

实现BPSK，QPSK，16QAM，64QAM等的调制解调(Achieve BPSK, QPSK, 16QAM, 64QAM modulation and demodulation, etc.)