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170
Matlab下用dspbuilder实现dds模块产生正弦波的源码
- 2010-08-17 19:55:20下载
- 积分:1
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CMP161
This file is a real seismic data in segy format.
- 2009-11-10 00:30:24下载
- 积分:1
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MOM-zhenzidianliufenbu
matlab矩量法(Hallen公式)编的半波振子,但是电流总是不对(matlab method of moments (Hallen equation) series of half-wave dipole, but the current is always right)
- 2011-11-06 15:30:05下载
- 积分:1
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FLch6BAeg1
FLch6BAeg1.m——模糊神经网络解耦MATLAB程序(FLch6BAeg1.m-- Fuzzy Neural Network Decoupling MATLAB program)
- 2013-11-13 15:54:18下载
- 积分:1
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SparseDeconv_software
基于1范数的稀疏信号反卷积算法的程序代码,语音信号、迭代算法(The sparse signal deconvolution algorithm based on 1 norm of program code, speech signal, an iterative algorithm)
- 2015-05-02 16:32:25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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Digital_modulation_FCN
这是数字调制的matlab代码程序,供大家参考,并请批评指正(digital)
- 2009-03-11 13:02:01下载
- 积分:1
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cell2num
This matlab function convert an all numeric cell array to a double precision array...
- 2010-11-28 22:54:46下载
- 积分:1
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MATLABexe
说明: MATLAB下实现可执行程序的生成与输出,了解
matlab编写可执行程序方法(MATLAB to achieve the generation of executable programs and output, understand the matlab executable program preparation method)
- 2008-09-20 00:21:12下载
- 积分:1
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DHMM_MATLAB
用matlab编写的基于DHMM的语音识别的程序(prepared using Matlab-based DHMM voice recognition procedures)
- 2006-06-26 00:34:48下载
- 积分:1