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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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DPsearch
This code implements the search algorithms described in [1]. The code only contains the Dirichlet/Multinomial case, but the Gaussian case can be hacked in in about 5 minutes.
[1] Fast search for Dirichlet process mixture models Conference on AI and Statistics (2007)
- 2010-06-20 20:08:51下载
- 积分:1
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CURVEFIT
在优化问题中,用于求解下列形式非线性规划问题(In optimization problem, the following form for solving nonlinear programming problem)
- 2010-08-16 20:22:18下载
- 积分:1
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Main_ch_est01
最小二乘无线信道估计与均衡,产生训练序列,信道估计,mse随信噪比变化曲线
(Least Square channel estimation, MMSE curves,BER chart)
- 2015-04-05 12:14:20下载
- 积分:1
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wartermarking
digital wartermarking 2D image from matlab source
- 2010-12-02 14:30:31下载
- 积分:1
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AntSystem-WithPlay
说明: 基于蚁群算法求解对称非对称旅行商问题(第一个程序和这个介绍的应该是这个)
(Solving Symmetrical and DisSymmetrical TSP base on Ant Colony Algorithm)
- 2009-08-19 10:27:41下载
- 积分:1
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MATLAB
MATLAB编程入门PPT,快速学会MATLAB基础,进行数值计算编程(Introduction to MATLAB programming PPT, quickly learned the basis of MATLAB, the numerical calculation programming)
- 2011-07-21 23:20:27下载
- 积分:1
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2-D-FDTD-TE-code-with-PML
一个二维的fdtdc++编写的程序,较完整,带有pml边界条件。感兴趣的可以下载看看。(A two-dimensional fdtdc++ preparation procedures, more complete, with pml boundary conditions. Interested can download to see.)
- 2014-02-24 22:14:52下载
- 积分:1
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PSO-bp
粒子群优化BP神经网络,代码通俗易懂,学习一下(PSO Optimize BP neural network, the code easy to understand)
- 2015-05-22 16:24:40下载
- 积分:1
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IterationADP
Iteration ADP是迭代自适应动态控制的matlab程序,算法精度比ADP高(Iterative ADP is iterative adaptive dynamic control matlab program, the algorithm more accurate than ADP)
- 2020-06-30 04:00:02下载
- 积分:1