cdma11112

q730是模拟低通转换为数字低通.q731是切比雪夫滤波器设计，q732椭圆带通数字滤波器的设计，其中用的是ellipord函数(q730 is converted to analog low-pass digital low-pass. q731 is a Chebyshev filter design, q732 elliptical band-pass digital filter design, which is used in a function ellipord)

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 )

MATLAB2013超级教程，包含matlab的各种功能使用方法，适合初学者(MATLAB2013 super tutorials, contains a variety of functions to use matlab for beginners)

实现卷积码的BPSK调制、vitbi译码及软硬判决与未编码的BPSK误码率的对比(Convolutional codes to achieve BPSK modulation, vitbi hard and soft decision decoding and BPSK and uncoded BER comparison)

一个语音识别程序，运用VQ算法，样本已经存在与文件夹中，点击test.m就可直接运行，调试完全。(A speech recognition program, using the VQ algorithm, the sample has been existing and folder, click on the test.m can be run directly, debugging.)

利用matlab 2012a 內建Demo 做人臉偵測程式(Built-in Demo human face detection program using matlab 2012a)

matlab中GUI的基本操作讲解，让初学者学会怎样使用GUI这一功能。(The basic operation of the GUI matlab explain, let beginners learn how to use the GUI this feature.)

非线性扩展卡尔曼滤波算法的matlab程序(Description:This is a tutorial on nonlinear extended Kalman filter (EKF). It uses the standard EKF fomulation to achieve nonlinear state estimation. Inside, it uses the complex step Jacobian to linearize the nonlinear dynamic system. The linearized matrices are then used in the Kalman filter calculation. The complex step differentiation seems improving the EKF performance particularly in accuracy such that the optimization and NN training through the EKF are better than through the UKF )

matlab命令大全。全面介绍了matlab5.3版本的全部命令，以及他的描述、语法和应用。包括数值计算、数据分析、绘图、图像处理、用户图形界面创建等……(matlab command Daquan. A comprehensive introduction to all of the commands matlab5.3 version, as well as his description, syntax, and applications. Including numerical computation, data analysis, graphics, image processing, graphical user interface to create, etc. ......)

该MATLAB代码可以实现一般的YUV攻击测试。(The MATLAB code can achieve a general YUV attack test.)