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MATLAB
数字信号处理及其MATLAB实现书籍,基于matlab的信号时频分析仿真书籍(Digital signal processing and MATLAB realize books, matlab-based time-frequency analysis of simulation books)
- 2008-05-30 23:15:52下载
- 积分:1
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matlab
1. 给一段原始的语音信号(可以是自己录制的一段语音),加上一频率为3.8kHz的高频余弦噪声和频率为3.6kHz的高频正弦噪声(幅度自己可以选择),用窗函数设计一滤波器(要求最小阻带衰减为50dB)对加噪后的语音信号进行滤波,画出滤波器的频率响应曲线,画出滤波前后的时域图和频谱图。
需要用到的函数:
fir1 用窗函数设计FIR滤波器的函数
2. 用GUI设计一界面(如图1所示)完成如下功能:
1) 输入一语音信号,画出语音信号的时域图和频谱图;
2) 对语音信号加噪处理,画出加噪后的时域图和频谱图;
3) 给定滤波器的性能指标,采用几种不同的方法设计滤波器对加噪信后进行滤波,画出各滤波器的频率响应曲线,画出滤波后的时域图和频谱图。
(1. to some of the original speech signal (which can be a voice you record yourself), plus a cosine frequency of 3.8kHz frequency noise and frequency of 3.6kHz frequency sinusoidal noise (in the range that they can choose), with a window function to design a filter (requires a minimum stop band attenuation is 50dB) after adding noise to the speech signal is filtered, the filter frequency response curve to draw, draw diagrams and time-domain spectrum before and after filtering. Need to use the function: function fir1 with window function design FIR filter design 2. Using a GUI interface (Figure 1) complete the following functions: 1) an input speech signal, the speech signal in the time domain to draw graphs and spectrum 2) adding noise to the speech signal processing, draw diagrams and time-domain plus noise spectrum after 3) to set the filter performance, using several different methods designed to filter letter after adding noise filtering, draw the frequency response curve of each )
- 2015-01-09 10:00:04下载
- 积分:1
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BP
说明: BP网络是通过输入层到输出层的计算来完成的。多于一层的隐含层虽然能在速度上提高网络的训练,但是在实际应用中需要较多的训练时间,而训练速度可以用增加隐含层节点个数来实现,因此在应用BP神经网络进行预测时,选取只有一个隐含层的三层BP神经网络就足够了。(The BP network is completed through the calculation of the input layer to the output layer. Although the hidden layer of more than one layer can improve the training of network in speed, more training time is needed in practical application, and the training speed can be realized by increasing the number of hidden layer nodes. Therefore, when the BP neural network is used to predict, the three layer BP neural network with only one hidden layer is sufficient.)
- 2018-04-26 21:18:39下载
- 积分:1
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4
说明: A Taxonomy of IEEE 802.11 Wireless Parameters and Open Source Measurement Tools
- 2010-11-15 03:27:53下载
- 积分:1
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nbodyVect
多刚体动力学matlb编程 用辛方法
Fully vectorized n-body equation
nbodyVect(x0,dx0,mus,t) integrates the n-body equations of motion using either a symplectic second order integrator, or any of the
standard built-in or user supplied first order integrators.
(Programming multi-body dynamics with symplectic methods matlb Fully vectorized n-body equation nbodyVect (x0, dx0, mus, t) integrates the n-body equations of motion using either a symplectic second order integrator, or any of the standard built-in or user supplied first order integrators.)
- 2010-12-26 14:15:31下载
- 积分:1
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jiangzao
对一段wav文件读取,并做简单的降噪处理,其中包含了高通滤波器的设计。适合新手(Wav file on a read and do simple noise reduction, which contains a high-pass filter design. For novice)
- 2010-05-09 13:56:40下载
- 积分:1
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mimoZF和 mmse 的 预编码
mimoZF和 mmse 的 预编码 matlab code 源码(Precoding matlab code source for mimoZF and MMSE)
- 2018-09-14 11:16:02下载
- 积分:1
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sift
sift算法的基础论文,很经典,还有一篇sift的讲解,由于上传限制,如果有需要可以向本人索取(sift algorithm based on papers, very classic, there is a sift in the talks, the upload limit, and if necessary I can be obtained)
- 2010-12-11 12:29:11下载
- 积分:1
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PSO_LSSVM
粒子群优化最小二乘支持向量机的代码。内附测试数据可直接套用。(PSO least squares support vector machine code. Enclosing the test data can be directly applied.)
- 2015-08-22 19:12:54下载
- 积分:1
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PNCC
matlabs program for finding PNCC features
- 2010-12-16 13:11:11下载
- 积分:1