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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.)

仿真直接RLS算法(direct RLS algorithm simulation)

利用DFT法求周期信号的功率谱,实现离散傅立叶变换DFT,最后分析得到频谱幅度.(DFT method using the power spectrum of periodic signals seeking to achieve the Discrete Fourier Transform DFT, the final analysis, amplitude spectrum obtained)

合成孔径雷达(SAR)点目标数据模拟生成的matlab程序(Matlab program for SAR simulation data generation)

an neutral fuzyy application in matlab

基本人工鱼群算法程序，matlab代码，非常完整，有注释(AFSA programm is with matlab,which is very good )

some usefull matlab code to practice matlab

this is the active noise developed by running an active sysetem

motor simln in matlab with reference to pmsm motor diagrams eqns and theory for better view

主要介绍了Alamouti空时算法，分别是分析在接收天线和发射天线不同的情况下信道衰落情况(Mainly introduces the Alamouti space-time algorithm,to analyze the channel fading in the case of the diffierent type of the receiving antenna and the transmitting antenna， respectively)