NthrIn2

对图像添加盐噪，设计一滤波器滤除盐噪声； 本人初学matlab，想有机会了解到更多的源代码，馆长给我机会啊(Add salt to the image noise, design a noise filter to filter out salt my novice matlab, would like to have the opportunity to learn more of the source code, the director for giving me the opportunity ah)

rs encoder in matlab 7,3

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.))

说明：  This code is used for moving object detection

精通Matlab与C/C++ 混合程序设计(第2版)(Proficient in Matlab and C/C++ mixed program design (2nd edition))

实现瑞利衰落的仿真，利用改进的jakes模型来产生单径的平坦型瑞利衰落信道。(Realize the simulation of Rayleigh fading, improved jakes model is used to produce a single type of flat Rayleigh fading channel.)

C-C方法求lorenz的延迟时间,还没试试，自己打开后改可以试试(C- C method for lorenz delay time)

PLL的设计与频率相应 清华大学的讲义 基于低通滤波器的设计绘制开环增益波特图(PLL DESIGN AND FREQUENCY GENERATION Draw open-loop gain Bode plot based on LPF design)

matlab 编程 生成ansys环境下使用的勒让德公式。

DTFT plot the spectrum of a sinusoidal signal