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awgn
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.)
- 2008-12-24 20:12:16下载
- 积分：1
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PLS
偏最小二乘法，能很好建立物质浓度和与相应的光谱矩阵的回归方程，且能对光谱阵降维和消除噪声影响。(Partial least squares, to establish material concentration and good with the regression equation of the corresponding spectral matrix array dimensionality of the spectrum and can eliminate noise effects.
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- 2013-10-03 23:18:34下载
- 积分：1
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Simulation_Complex_Plots
machine synchrone implimentaion matlab
- 2015-02-01 09:36:58下载
- 积分：1
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genetic_algorithm
Genetic algorithm in matlab.
- 2009-05-17 19:16:54下载
- 积分：1
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LDAandPCA
说明： 包含PCA和LDA的matlab代码，希望对大家有用(PCA and LDA contains the matlab code, we hope to be useful)
- 2011-02-22 10:42:14下载
- 积分：1
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matlab
说明： matlab做的直流电动机双闭环调速系统仿真(qqqqqqqqqq)
- 2010-04-27 13:36:09下载
- 积分：1
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jizhongxiaoboyuzhiquzao
小波阈值去噪算法的几个例子。希望对广大的初学者有点帮助。(Wavelet threshold denoising algorithm a few examples. I hope the majority of the beginners a little help.)
- 2012-05-02 21:32:33下载
- 积分：1
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PWE_PBS_3Dfcc
Calculates photonic band structure for either an fcc or diamond lattice of dielectric spheres of dielectric constant epsilon_a in a dielectric background of dielectric constant epsilon_b.(Calculates photonic band structure for ei ther'isnt an fcc or diamond lattice of dielectric v. eres of dielectric constant in a diel epsilon_a ectric background of dielectric constant epsi lon_b.)
- 2007-05-06 16:26:46下载
- 积分：1
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matlab_newmann_TP1
principal_neumann (nom_maillage)
a routine for implementing the EF P1 Lagrange
for the Laplace equation following, with conditions
Neumann on the mesh nom_maillage.msh
- 2013-12-24 05:38:30下载
- 积分：1
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2PSK-modem-emulation
2PSK的调制解调过程的仿真及在不同信道下误码率仿真分析(2PSK modem emulation and simulation of BER)
- 2013-11-30 16:07:26下载
- 积分：1
