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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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huazuobiaozhou
说明： 利用matlab画平面坐标轴，可自定义坐标长度和刻度。(Painting using matlab axis plane, can be customized in length and scale coordinates.)
- 2009-08-10 17:02:26下载
- 积分：1
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VB_Matlab
VB与Matlab混合编程在步进电机曲线插补运算中的应用,希望对大家有帮助！(Mixed programming in VB and Matlab curve interpolation step motor operation in the application, we want to help!)
- 2010-08-11 20:34:54下载
- 积分：1
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red_blue
立体显示红蓝算法Algorithm for three-dimensional display red and blue(Algorithm for three-dimensional display red and blue)
- 2011-09-06 22:37:28下载
- 积分：1
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Bayesian-Compressive-Sensing
一种用贝斯定理的形式基于压缩传感测量估计基本信号(employ a Bayesian formalism for estimating the undering signal based on compressive-sensing measurements
)
- 2013-07-25 11:18:13下载
- 积分：1
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matlab
时间序列建模AR（1）后的卡尔曼滤波程序，整个过程非常详细，里面自带一组数据。(Time series modeling AR (1) after the Kalman filtering process, the entire process is very detailed, which comes with a set of data.)
- 2021-01-21 17:28:48下载
- 积分：1
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matlab2660
matlab实例，给出了诸多matlab编程应用的例子，值得一看。(matlab example, matlab programming gives many examples of applications, worth a visit.)
- 2007-11-24 10:35:59下载
- 积分：1
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dctfinalinmatlab
It will take a DCT of Jpg image.
- 2009-03-27 23:19:01下载
- 积分：1
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SC_FDE_system_frequency-domain-equalization-algori
。本文研究了SC-FDE系统中的最小均方误差判决反馈
均衡（MMSE-DFE）和基于LMS准则的自适应均衡算法，
MATLAB仿真表明，由于LMS自适应均衡算法能有效的跟
踪信道变化并更新均衡器的抽头系数，其性能略优于最小
均方误差判决反馈均衡算法。(. In this paper, the SC-FDE system, the minimum mean square error decision feedback
Equalization (MMSE-DFE) and criteria based on LMS adaptive equalization algorithms
MATLAB simulation results show that LMS adaptive equalization algorithm as effective with
Track changes and update the channel equalizer tap coefficients, its performance slightly better than the minimum
Mean square error decision feedback equalization algorithm.)
- 2010-05-12 21:29:59下载
- 积分：1
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makeYbus
making admitance matrix in matlab soft
- 2011-06-11 15:20:29下载
- 积分：1
