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111186782WLANOfdmProgram
demo ofdm using matlab
- 2009-05-25 00:17:42下载
- 积分:1
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tuxiangronghe
这是关于MATLAB图像融合方面的书籍材料(This is the image on the integration of MATLAB books materials)
- 2010-06-02 15:44:02下载
- 积分:1
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Short-time-zero-crossing-rate
基于MATLAB用于检测提取的语音信号的平均短时过零率的算法,可以方便的检测出是清音还是浊音。(Algorithm based on the MATLAB for detecting extracted speech signal average short-term zero-crossing rate, you can easily detect the voiceless or voiced.)
- 2013-05-08 10:17:52下载
- 积分:1
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FIR
1、验证窗函数 N 变化时,验证其频谱主瓣副瓣比、主瓣宽度的变化。
a)矩形窗函数的 N 变化时,验证其其频谱主瓣副瓣幅度比基本不会发生变化,
而主瓣宽度将会变窄。这说明,当用矩形窗函数设计滤波器时,增大 N 不能使
得阻带衰减减小,但能够减小过渡带。
b)再选取其他的窗如 hamming/hanning 窗,验证当 N 变化时,其频谱主瓣宽
度变化、主瓣副瓣比值变化情况。
2、用窗函数法设计线性相位 FIR 低通,通带截止频率 wp=0.5PI, 阻带截止频率 ws=0.6PI,
阻带衰减不小于 40dB,通带衰减不大于 3dB.
a)选取 Hanning,Hamming 窗查看设计出来的 FIR 的过渡带宽和阻带衰减是否
满足要求,二者有什么不同。
b)使用 hamming 窗,将窗长增大 1 倍,设计 FIR。验证同样的窗函数类型
(hamming),不同窗长度时,设计出来的 FIR 的过渡带宽和阻带衰减都有什么变
化。
3、不使用 Matlab 系统函数得到上一项指标的低通,并与上一项结果比较。
4 用窗函数法设计线性相位 FIR 高通,通带截止频率 wp=0.8PI, 阻带截止频率
ws=0.7PI, 阻带衰减不小于 30dB,通带衰减不大于 3dB.(An actual filter is implemented using the truncated unit impulse response sequence of the ideal filter.
For the ideal low pass filter, the unit impulse response h, N, D () is intercepted by a length of N, and the length is
The N sequence H (n), when intercepted, guarantees causality and linear phase requirements for the filter.
In order to reduce the Gibbs effect, the H (n) window is added, and the appropriate window function is selected to ensure the stopband attenuation and
Transition zone requirement. Note that the sidelobe of the window function affects the stopband attenuation of the filter, and the main lobe width affects the filter
Transition bandwidth.)
- 2017-07-06 11:55:24下载
- 积分:1
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stdio_example
matlab中用C语言编写sfunction, 实现读取文件中的数据,应用库"stdio.h"(matlab using C language sfunction, realize the data read from the file, the application library stdio.h)
- 2007-10-15 17:23:56下载
- 积分:1
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PSOandGA
粒子群算法 很实在的程序敬请大家下载。保证不会后悔(PSO program is really please you to download. Guaranteed not to regret)
- 2010-08-27 20:08:22下载
- 积分:1
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MATLAB-GUI-Design-CD
《精通MATLAB GUI设计》的光盘内容,丰富的示例,够你学的了(" Mastering MATLAB GUI design" CD-ROM content, rich examples, enough for you to learn.)
- 2013-07-16 19:44:12下载
- 积分:1
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interp_profiles_ne.m
interpolation of the density profiles
- 2015-03-05 18:53:21下载
- 积分:1
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tuxiangfenge
利用多种方法对图像进行分割的matlab程序(Using a variety of methods for image segmentation matlab program)
- 2015-03-20 14:00:46下载
- 积分:1
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frog
Passino所提出的细菌优化算法matlab源程序(Passino proposed optimization algorithm matlab source of bacteria)
- 2007-08-27 22:29:18下载
- 积分:1