GUI_01

DTMF(双音多频)是用两个特定的单音频组合信号来代表数字信号的一种编码技术。两个单音的频率不同，代表的数字或实现的功能也不同。可采用8种频率代表电话机上的16个按键，10个数字键0~9和6个功能键*、#、A、B、C、D。具体的频率组合见参考书。要求： (1) 根据键盘输入的符号，利用MATLAB产生对应的DTMF信号；(2) 分别利用FFT算法和Goertzel算法计算该DTMF信号的频谱并画出频谱图；(3) 根据频谱图确定DTMF信号所代表的符号是否和输入的符号一致。 (DTMF (Dual Tone Multi-Frequency) is a single with two specific combination of audio signals to represent a kind of digital signal coding techniques. Two monosyllabic different frequency, on behalf of the numbers, or the realization of the functions are also different. Eight kinds of frequency of use on behalf of telephone on the 16 keys, 10 numeric keys 0 ~ 9 and 6 function keys*,#, A, B, C, D. The frequency of specific composition of reference books. Requirements: (1) According to the keyboard input of symbols, the use of MATLAB have a corresponding DTMF signal (2), respectively, using FFT algorithm and the Goertzel algorithm DTMF signal spectrum and frequency spectrum draw (3) According to DTMF signal frequency spectrum to determine represented by symbols and input symbols unanimously.)

Talking about adaptive filter digital

matlab下的GUI使用指导视频，让你快速掌握GUI的使用(GUI using matlab under the guidance of video, let you quickly master the use of GUI)

matlab的空间域曾强。实现通过应用各种滤波器来使得图片清晰度曾强等功能(matlab has strong spatial domain. To achieve through the application of various filters to make picture-definition and other functions have been strong)

lte链路接收链路TURBO码解码matlab代码，(lte link decoding matlab code)

MATLAB编程，将MATLAB与编程方法结合，涉及常用编程技巧和误区，搜索无重复。(MATLAB programming，it is a good book。)

用kalman算法实现系统辨识，最终实现滤波，具有精度高，收敛快的特点(System identification algorithm using kalman, and ultimately the filter, with high precision, fast convergence characteristics)

MATLAB 单纯形法 对偶单纯形法,两阶段单纯形法(matlab simply method)

filtering in frequecy domain for image enhancement

基于MATLAB环境的音频水印白噪声攻击试验源程序(MATLAB-based environment audio watermarking attacks white noise test source)