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plot_modified_FWGN
用MATLAB仿真出改进FWGN信道模型 优于普通FWGN信道模型 两者可以作比较(MATLAB simulation of improved FWGN channel model is superior to both ordinary FWGN channel model can be compared)
- 2014-09-22 07:20:15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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gnss_sw_radio
伽利略和北斗的BOC捕获跟踪和解算程序，都可以运行。(MATLAB for GNSS of boc)
- 2014-07-14 19:43:40下载
- 积分：1
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mfcc
本MATLAB是用来提取语音信号的MFCC特征，可对.wav文件进行特征提取(The MATLAB is used to extract the MFCC features of speech signals,.Wav files can be extracted)
- 2017-05-05 18:38:39下载
- 积分：1
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35738608fenchatu
this is for non linear sliding mode
- 2010-06-01 01:47:31下载
- 积分：1
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gray-method
利用matlab编制灰色预测模型，通过少量的、不完全的信息，建立灰色微分预测模型，对事物发展规律作出模糊性的长期描述（模糊预测领域中理论、方法较为完善的预测学分支）。(Using matlab preparation gray prediction model, a small amount of incomplete information, the establishment of the gray differential prediction model fuzziness long description (fuzzy forecast field theory of the law of development of things, the more perfect branch predictions).)
- 2012-09-04 17:03:30下载
- 积分：1
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dost
DOST extraction code
- 2015-01-15 18:35:08下载
- 积分：1
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粒子群算法综合线阵低副瓣方向图
说明： 利用粒子群算法综合微带天线阵列方向图，可以自适应调节副瓣电平和波瓣宽度。(By using particle swarm optimization (PSO) to synthesize the pattern of microstrip antenna array, the sidelobe level and lobe width can be adjusted adaptively.)
- 2020-11-23 16:19:33下载
- 积分：1
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Reentrance
investigation Reentrance problems of Heart
- 2011-01-24 19:29:26下载
- 积分：1
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IntroductionForMatlab
说明： 本书全面的介绍了MATLAB的基础知识，对初学者很有用。(This book a comprehensive introduction to the basics of MATLAB for beginners useful.)
- 2010-03-28 17:32:21下载
- 积分：1
