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interest-points
基于兴趣点颜色及纹理特征的图像检索算法，通过同类比较，平均检索准确率提高11个百分点。(Based on the interest points and texture features of color image retrieval algorithm, through a similar comparison, the average retrieval accuracy rate of 11 percent improve.)
- 2009-03-05 11:09:25下载
- 积分：1
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radon_ambiguity
％radon transform
clear all
％
N=800
n=1:N
fs=200
t=n/fs
x1=exp(j*2*pi*(5*t+0.5*5*t.^2))
x2=exp(j*2*pi*(5*t+0.5*15*t.^2))
x=x1+x2
％N=length(x)
％ ambifunb(x )
％*****************************************RAT
naf=ambifunb(x)
htl(abs(naf))
％ [wh,rho,theta]=htl(abs(naf))
colormap([0,0,0])
％ xlabel( 极半径 )
％ ylabel( 角度 )
％**************************************％找出峰值点的坐标,计算初始频率和调频斜率(正确)
％找出峰值点的坐标
b=max(max(wh))
[u,a]=find(wh>=0.8*b)
( Radon transformclear all N = 800 n = 1: N fs = 200 t = n/fs x1 = exp (j* 2* pi* (5* t+ 0.5* 5* t. ^ 2)) x2 = exp ( j* 2* pi* (5* t+ 0.5* 15* t. ^ 2)) x = x1+ x2 N = length (x) ambifunb (x)***************************************** RATnaf = ambifunb (x) htl (abs (naf)) [wh, rho, theta ] = htl (abs (naf)) colormap ([0,0,0]) xlabel (polar radius) ylabel (angle)************************************** to find the coordinates of the peak point, calculating the initial slope of the frequency and FM (right) find the peak point of the coordinates b = max (max ( wh)) [u, a] = find (wh)
- 2008-05-06 21:56:10下载
- 积分：1
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waterfill
OFDM经典注水算法，可以直接调用，有参考价值(OFDM water classic algorithms, can be called directly, there is reference value)
- 2010-12-22 22:14:59下载
- 积分：1
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MT2DMODEL
大地电磁二维正演程序是电磁法的基础编程，首先设置地电断面然后通过正演模拟电磁场在大地中的传播形式来得到地下地质体的电阻率情况，从而得到地下地质体情况(Two-dimensional magnetotelluric forward modeling procedure is based programming electromagnetic method, first set the geoelectric section and then through the forward modeling electromagnetic propagation in the earth in the form to get the subsurface resistivity body condition, resulting in underground geological conditions)
- 2013-11-21 23:34:46下载
- 积分：1
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hw4psk
提供了4-psk的matlab源程序包，包括主函数和子函数，可供初学者学习参考。(Provides a 4-psk the matlab source code package, including the main function and Functions for beginners to learn the reference.)
- 2009-05-26 13:06:18下载
- 积分：1
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stap
空时自适应处理，时间 距离 维动目标检测。基础程序(basic program for space-time adaptive processing moving target detection )
- 2010-12-16 19:27:18下载
- 积分：1
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db4
1、 降噪步骤：
（1） 一维信号的小波分解。选择一个小波并确定分解的层次，然后进行分解运算。
（2） 小波分解高频系数的阈值量化。对各个分解尺度下得高频系数选择阈值进行软阈值量化处理。
（3） 一维小波重构。根据小波分解的最底层低频系数和各高频系数进行一维小波重构。
matlab里面有关于去噪的函数，你可以找一下~~
这说的只是基本原理，希望有所帮助(1, noise reduction steps: (1) one-dimensional signal wavelet decomposition. Select a wavelet decomposition level and determining, and then divide the operation. (2) high coefficient wavelet thresholding. For each decomposition scales have high coefficient selection threshold soft threshold quantization. (3) one-dimensional wavelet reconstruction. According to the lowest level of the low frequency wavelet coefficients and high frequency coefficients of each one-dimensional wavelet reconstruction. There are about denoising matlab function, you can find some ~ ~ This says just the basic principle, we hope to help)
- 2013-07-01 14:36:08下载
- 积分：1
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simulinkHandbook
一本介绍simulink的书籍，介绍利用simulink建模仿真等方法以及s函数的写法。内容非常全面。(1 Introduction simulink books, simulink introduce the use of methods such as modeling and simulation, as well as the wording of s function. Very comprehensive.)
- 2009-02-19 21:39:43下载
- 积分：1
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ACE_METHOD
PAR reduction in OFDM via active constellation extension
- 2014-08-13 23:29:30下载
- 积分：1
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suijimohumoni
用matlab来做随机模糊模拟的计算，清华刘宝锭《不确定理论》中的算例(Calculated using matlab to do a random fuzzy simulation, Qinghua Liu ingot "Uncertainty Theory" in the numerical example)
- 2021-02-23 11:49:41下载
- 积分：1
