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Matlab_for_digital_communication
Matlab for digital communication
- 2009-11-04 19:11:08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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BLDC
基于MATLBA的无刷直流电机仿真，使用新版MATLAB可以运行(MATLBA-based simulation of the brushless DC motor, using the new version can run MATLAB)
- 2009-05-28 20:26:41下载
- 积分：1
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fft_ifft
C语言写的基2fft算法，测试过了结果，比matlab的结果精度还是稍差(fft algorithm in C language.Have testd the result.)
- 2012-02-08 09:29:34下载
- 积分：1
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ypsy
向音频信号加入伪随机序列的的音频水印源码(to the audio signal to the pseudo-random sequence of audio watermarking FOSS)
- 2007-04-08 14:23:05下载
- 积分：1
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bp-3d
机载下视三维合成孔径雷达仿真，BP算法，发射线性调频信号(Airborne 3D SAR imaging simulation, BP algorithm, transmitting LFM signal)
- 2018-05-19 18:16:08下载
- 积分：1
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CH5
Chapter 5 of Telecommunication Networks book
- 2010-10-24 18:15:33下载
- 积分：1
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diophantine
丢蕃方程的求解，包括单步和多步，是实施最小方差自校正控制和广义预测控制的基础。(Diophantine equations, including single-step and multi step is to implement the minimum variance self-tuning control and generalized predictive control of the foundation.)
- 2011-06-11 14:55:00下载
- 积分：1
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lab-exp_PQ-analysis
power quality analysis simulation in Matlab
- 2012-01-28 04:00:19下载
- 积分：1
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costas
用MATLAB实现costas环，希望对你有所帮助(Implementation of Costas ring with MATLAB)
- 2017-11-02 22:11:56下载
- 积分：1
