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ofdm
ofdm基带传输，信道编码，QPSK调制，卷积编码(the OFDM baseband transmission, channel encoding, QPSK modulation, convolutional encoder)
- 2020-12-05 14:09:22下载
- 积分：1
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sharpness-code
Color Image Enhancement Techniques:
A Critical Review
Abstract
Image enhancement is one of the key issues in high quality pictures such as digital camera and HDTV. Since
Image clarity is very easily affected by lighting, weather, or equipment that has been used to capture the image.
These conditions lead to image may suffer from loss of information. As a result, many techniques have
developed known as image Enhancement techniques to recover the information in an image. This paper presents
a literature review on some of the image Enhancement techniques for color image enhancement like, Contrast
Stretching, Histogram Equalization and its improvement versions, Homomorphic Filtering, Retinex, and
Wavelet Multiscale Transform. Comparison of all the techniques concludes the better approach for its future
research
- 2013-09-21 18:27:21下载
- 积分：1
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_adc_wo_background_cal_dec
建模仿真, matlab 应用仿真， 对ADc理解很有帮助(pipelined_adc_wo_background_cal_dec
)
- 2013-10-17 17:53:10下载
- 积分：1
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random
随即过程模拟，用matlab描述，企业在不同策略下参生的效益有是否不同(Then the process of simulation, using matlab description, corporate strategy in different Senate Health benefits have is different)
- 2008-04-30 20:01:57下载
- 积分：1
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2013061459547765
mimosimulation，ofdmsimulation(mimosimulation, ofdmsimulation)
- 2015-02-20 04:11:34下载
- 积分：1
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TYZmyPCA
PCA算法的matlab程序。本代码是对一维信号进行PCA降维处理的matlab函数。(PCA algorithm matlab program. This code is a one-dimensional signal processing PCA dimensionality reduction matlab function.)
- 2020-11-17 13:39:39下载
- 积分：1
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yijidaolibai
一级倒立摆的系统仿真动画，初始加速度为0，实现最基本的小车不动，摆杆动的仿真程序(An inverted pendulum system simulation animation, initial acceleration is 0, the most basic car does not move, moving pendulum simulation program)
- 2013-11-08 11:11:08下载
- 积分：1
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filter
拉格朗日法实现多采样率的小数时延的实现，插值增加采样率，增加小数时延后，再以相同的速率抽取使其还原成原始采样率 (Lagrange method to realize the sampling rate of the realization of the fractional delay, interpolation increase the sampling rate, increase the decimal time delay, and at the same rate of extraction to make it back into the original sampling rate)
- 2013-12-16 10:42:38下载
- 积分：1
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单相光伏并网控制系统
说明： 以单相光伏发电并网系统为研究对象，基于Matlab/Simulink平台，进行了光伏电池的建模，MPPT模型的搭建，并实现了系统的并网。(Taking the single-phase photovoltaic power grid system as the research object, based on MATLAB / Simulink platform, the photovoltaic cell modeling and MPPT model are built, and the grid connection of the system is realized.)
- 2019-12-01 21:53:58下载
- 积分：1
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dct
M=512 原图像长度
N=64
K=8
I=zeros(M,M)
J=zeros(N,N)
BLOCK=zeros(K,K)
显示原图像
I=imread( f:ceshiyuanshitu.bmp )
figure
imshow(I)
xlabel( 原始图像 )
显示水印图像
J=imread( f:ceshilogistic_nuaa64.bmp )
figure
imshow(J)
xlabel( 水印图像 )
嵌入水印
tem=1
for p=1:N
for q=1:N
x=(p-1)*K+1
y=(q-1)*K+1
BLOCK=I(x:x+K-1,y:y+K-1)
BLOCK=dct2(BLOCK)
if J(p,q)==0
a=-1
else
a=1
end
BLOCK(2,1)=BLOCK(2,1)*(1+a*0.01)
BLOCK=idct2(BLOCK)
I(x:x+K-1,y:y+K-1)=BLOCK
end
end
显示嵌入水印后的图像
figure
imshow(I)
xlabel( 嵌入水印后的图像 )
imwrite(I, f:ceshiembedded.bmp )
- 2010-06-13 18:43:39下载
- 积分：1
