-
example4_6
:滤波
fs=400 采样频率,必须大于两倍基带信号最高频率
ts=1/fs 采样时间间隔
T=5 时间窗大小
t=0:ts:T (hf1=zeros(1,N)
hf1(f<=B1&f>=-B1)=1
y1=hf1.*fftshift(y)
figure
subplot(211)
plot(f,abs(fftshift(y))/N,f,hf1, r-- )
axis([-fs/2,fs/2,0,1.2])
title( 原信号频谱 )
xlabel( f /Hz )
subplot(212)
plot(f,abs(y1)/N)
title( 低通滤波,截止频率90Hz )
xlabel( f /Hz ))
- 2010-05-25 20:58:05下载
- 积分:1
-
HT_identification
hilbert时频识别(力学领域)Michael feldman编写(自由振动、强迫振动)(hilbert time-frequency identification (mechanical fields) Michael feldman prepared (free vibration, forced vibration))
- 2007-05-26 23:47:06下载
- 积分:1
-
exam2_1995
Elnagar, G., et al. (1995). "The pseudospectral Legendre method for discretizing optimal control problems." IEEE Transactions on Automatic Control 40(10).
上述文章的算例2的仿真代码(Elnagar, G., et al. (1995). " The pseudospectral Legendre method for discretizing optimal control problems." IEEE Transactions on Automatic Control 40 (10).
the simulation code of example 2 in the preceding article.)
- 2013-10-18 12:54:32下载
- 积分:1
-
image_measure
tool for measuring images
- 2013-04-23 00:30:03下载
- 积分:1
-
PAPER5
doppler spread estimation for wireless ofdm systems
- 2015-02-01 12:20:38下载
- 积分:1
-
casfiltr
利用Matlab设计数字滤波器的过程中用于实现数字滤波器的级联型结构(Use Matlab design process of digital filters used to implement the digital filter cascade structure)
- 2013-05-26 21:19:30下载
- 积分:1
-
ycx
matlab7.0从入门到精通配书光盘源程序(matlab7.0 books from the entry to the master CD-ROM with source code)
- 2011-01-09 10:47:17下载
- 积分:1
-
ARMODEL
ARMA序列用于时间序列描述 本编码较为简单 适合初学者使用 (Time series for beginners, please describe the generous support of)
- 2011-11-26 15:18:45下载
- 积分:1
-
cavity2
Dear colleagues! I uploaded sample code for SIMPLE-algorithm and solving lid-driven cavity flow test. 2-D Lid Driven Cavity (Matlab)
- 2014-01-26 18:22:06下载
- 积分:1
-
matlab-analysis
通过matlab编程,采用纤维法实现简单矩形截面的弯矩-曲率关系分析,附件为分析源代码。(By matlab programming, using a simple method to achieve a rectangular cross section fiber moment- curvature relationship analysis, attachment to analyze the source code.)
- 2016-09-18 10:38:12下载
- 积分:1