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FIR
设计一个数字FIR低通滤波器，其技术指标如下：Wp=0.2 Rp=0.25 Ws=0.3 As=50(Design a digital FIR low-pass filter, the technical indicators are as follows: Wp = 0.2 Rp = 0.25 Ws = 0.3 As = 50)
- 2009-05-17 10:26:40下载
- 积分：1
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xiaobobao
ch3=softt(h3,thr1 clear
clc
I=imread( lena512.bmp )
imshow(I)
I=double(I)
II=I+30*randn(size(I))
figure
imshow(II,[])
[a1,h1,v1,d1]=dwt2(II, sym8 )
[a2,h2,v2,d2]=dwt2(a1, sym8 )
[a3,h3,v3,d3]=dwt2(a2, sym8 )
sigma=median(abs(d1(:)))/0.6745
x=3*sigma
thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x 小波图像去噪( ch3=softt(h3,thr1 clear
clc
I=imread( lena512.bmp )
imshow(I)
I=double(I)
II=I+30*randn(size(I))
figure
imshow(II,[])
[a1,h1,v1,d1]=dwt2(II, sym8 )
[a2,h2,v2,d2]=dwt2(a1, sym8 )
[a3,h3,v3,d3]=dwt2(a2, sym8 )
sigma=median(abs(d1(:)))/0.6745
x=3*sigma
thr1=x*2^(-1) thr2=x*2^(-0.5) thr3=x )
- 2012-05-26 11:08:34下载
- 积分：1
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FOS_convert
MATLAB实现快速正交变换，与传统的FFT算法相比拥有更高的分辨率，但是运算时间较大， 在目标检测、频率分析、降噪方面都有着广泛的应用(MATLAB to achieved FOS_convert, compared with the traditional FFT algorithm has a higher resolution, but the computation time is large, the target detection, frequency analysis, noise reduction have a wide range of applications)
- 2013-09-27 10:28:11下载
- 积分：1
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Goldenmin
1-D optimal step size using golden section
- 2009-05-09 18:20:05下载
- 积分：1
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dierzhang
信号与系统第二版清华大学出版社课后习题编程答案(Signals and Systems, Tsinghua University Press, second edition programming after-school exercise answer)
- 2016-04-08 10:23:40下载
- 积分：1
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Fquaadrotor_do
四轴飞行器Matlab仿真分析，涉及四轴飞行器主要部件如Mottor，camera，电池等，分析包含稳定性、动力等 已通过测试。
(VRML simulation on the real life in a common environment (multimedia classroom), very often realistic image, the code is very long, but it is easier to understand. Has been tested.)
- 2012-07-10 16:55:15下载
- 积分：1
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Cal_MTF_wavefront
利用MATLAB 计算调制传递函数，在已知波前时，求解调制传递函数。( Purpose: Calculate and Plot MTF of the Wave Aberration Function
This file calculates and plots the MTF of the Wave Aberration function specified by:
jmax = highest mode in Wave Aberration Expansion
Wrmsj = rms Wave Aberration coefficients of modes 0 to jmax
d = pupil diameter in mm
lambda = wavelength in nm
)
- 2015-02-28 01:15:25下载
- 积分：1
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SynchronizationForAllDigitalreceivers
全数字接收的同步技术，包括内插器、定时检测器、数字振荡器等部分，是一篇较早比较有参考价值的论文，在学习全数字接收机同步方面重要。作者gardner(Synchronization of all-digital receivers, including interpolator, timing detector, digital oscillator and some other, is an earlier paper are more useful in learning the important aspects of all-digital receiver synchronization. On the gardner)
- 2010-07-15 11:02:30下载
- 积分：1
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QPSK_CE_block
说明： 该程序实现OFDM系统中块状导频的信道估计，块状导频用于时变较慢的多径信道，可以估计出每个载波上的信道传输情况。(The programme realizes channel estimation with block pilots.)
- 2010-04-06 17:04:49下载
- 积分：1
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PSO_optization_Wind_UC
用于计算电力系统机组组合及经济调度问题，修改添加风电后可用于计算含风电系统的经济调度问题(Used to calculate the power system unit commitment and economic dispatch problem, modify, after adding wind power can be used to calculate the wind power system with the economic dispatch problem)
- 2013-10-11 17:57:36下载
- 积分：1
