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Description: 立体视觉的关键技术是解决对应问题，点特征常被用来做特征。HARRIS角点检测算子较有影响。用MATLAB编写的。-stereo vision technology is the key to solve the matching problem, point feature often used to do features. HARRIS corner detection operator more influential. MATLAB prepared.
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Author: jxhappyqin |
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Description: %OFDMDEMO Demonstrates OFDM Communication System % Function: to demonstrate the primary principle of OFDM system % % To start the demo type "OFDMDEMO" in Matlab. % % For more information press "help" button % % ofdmsimple.m is the key code of ofdm simulation
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Author: oldfishhead |
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Description: Hopfield 网——擅长于联想记忆与解迷路 实现H网联想记忆的关键，是使被记忆的模式样本对应网络能量函数的极小值。 设有M个N维记忆模式，通过对网络N个神经元之间连接权 wij 和N个输出阈值θj的设计，使得: 这M个记忆模式所对应的网络状态正好是网络能量函数的M个极小值。 比较困难，目前还没有一个适应任意形式的记忆模式的有效、通用的设计方法。 H网的算法 1）学习模式——决定权重 想要记忆的模式，用-1和1的2值表示 模式：-1，-1，1，-1，1，1，... 一般表示： 则任意两个神经元j、i间的权重： wij=∑ap(i)ap(j)，p=1…p； P：模式的总数 ap(s)：第p个模式的第s个要素（-1或1） wij：第j个神经元与第i个神经元间的权重 i = j时，wij=0，即各神经元的输出不直接返回自身。 2)想起模式： 神经元输出值的初始化 想起时，一般是未知的输入。设xi(0)为未知模式的第i个要素（-1或1） 将xi(0)作为相对应的神经元的初始值，其中，0意味t=0。 反复部分：对各神经元，计算： xi (t+1) = f (∑wijxj（t）-θi), j=1…n, j≠i n—神经元总数 f（）--Sgn（） θi—神经元i发火阈值 反复进行，直到各个神经元的输出不再变化。-Hopfield network-- good at associative memory solution with the realization of lost H associative memory networks, are key to bringing the memory model samples corresponding network energy function of the minimum. With M-N-dimensional memory model, the network N neurons connect between right wij and N output threshold j design makes : M-mode memory corresponding to the network is a state network energy function is the M-000 minimum. More difficult, it is not an arbitrary form of adaptation memory model of effective, common design methods. H network algorithm 1) mode of learning-- decision weights want memory model, with 1 and 2 of the value of a model, said :-1, 1, 1, 1 ,1,1, ... in general : two were arbitrary neuron j i weights between : wij ap = (i) ap (j), p = 1 ... p; P : The tot
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Author: 韵子 |
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Description: M-file for simulating a QPSK transmitter by modulating with a pseudo random bit stream. A serial to parallel conversion of the pseudo random bit stream is performed with mapping of two bits per symbol. A cosine and sine carrier is configured and the I and Q symbols modulate these carriers. The I and Q carriers are combined and time and frequency domain plots are provided showing key waveforms at various positions in the QPSK transmitter.
-M-file for simulating a QPSK transmitter b y modulating with a pseudo random bit stream. A s erial to parallel conversion of the pseudo rand om bit stream is performed with mapping of two bi ts per symbol. A cosine and sine carrier is CBMs gured and the I and Q symbols Modulate these CARR IERS. The I and Q carriers are combined and a time nd frequency domain plots are provided showing key waveforms at various positions in the QPSK t ransmitter.
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Author: xiaoying |
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Description: 立体视觉的关键技术是解决对应问题，点特征常被用来做特征。HARRIS角点检测算子较有影响。用MATLAB编写的。-stereo vision technology is the key to solve the matching problem, point feature often used to do features. HARRIS corner detection operator more influential. MATLAB prepared.
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Size: 2048 |
Author: jxhappyqin |
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Description: ％ 文件名：randlsbget.m
％ 程序员:余波
％ 编写时间:2007.6.25
％ 函数功能: 本函数将完成提取隐秘于上的秘密信息
％ 输入格式举例:result=( scover.jpg ,56, secret.txt ,2001)
％ 参数说明:
％ output是信息隐藏后的图象
％ len_total是秘密信息的长度
％ goalfile是提取出的秘密信息文件
％ key是随机间隔函数的密钥
％ result是提取的信息
function result=randlsbget(output,len_total,goalfile,key)
ste_cover=imread(output)
ste_cover=double(ste_cover)
％ 判断嵌入信息量是否过大
[m,n]=size(ste_cover)
frr=fopen(goalfile, a )
％ p作为信息嵌入位计数器将信息序列写回文本文件
p=1
％ 调用随机间隔函数选取像素点
[row,col]=randinterval(ste_cover,len_toal,key)
for i=:len_toal
if bitand(ste_cover(row(i),col(i)),1)==1
fwrite(frr,1, bit1 )
result(p,1)
else
fwrite(frr,0, bit1 )
result(p,1)=0
end
if p==len_total
break
end
p=p+1
end
fclose(frr)
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Author: yubo |
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Description: DES是一种分组密码。假定明文m是由0和1组成的长度为64位的符号串，密钥k也是64位的0、1符号串。-DES is a block cipher. M is expressly assumed by 0 and a length of 64 strings of symbols, as well as key k 0 64, a string of symbols.
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Author: 蓝色简单 |
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Description: 此包中是对lsb这种数字水印的添加算法的一种改进方法，其中有三个主要文件Mylsb.m modify_lsb.m和.modify_lsb2.m 这三个文件是对lsb这个算法的三次不同程度的改进，一次比一次改的多，主要涉及的改进方法是我们在添加水印时运用了像素的八临域来判断所应插入的值，其次的方法是运用了转换到不同色彩空间进行水印插入。插入效果的比较通过my_hist.m这个文件来进行显示。-This package is lsb add this digital watermarking algorithm for an improved method, of which there are three key documents Mylsb.m modify_lsb.m and. Modify_lsb2.m these three documents is the lsb of this algorithm three different degrees of improvement of , one of the more than one change, mainly involving the improvement method is to add a watermark when we used the eight pixels to determine the clinical domain of the value should be inserted, followed by the method is to use a switch to a different color space for watermark insertion. Comparison of the effect of insertion through my_hist.m to display the document.
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Author: 吴浩栋 |
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Description: 绍了数字通信中的Q PSK 调制解调的原理和过程, 通过用M atlab 对这一过程的编程, 分析信号在
理想信道和加噪信道中模拟传输时的时域图, 并用蒙特卡罗方法, 讨论模拟过程中的误码率, 所得结果与理论
结果基本一致.
关键词:Q PSK 系统仿真 蒙特卡罗分析 M atlab-Shaozeng digital communications Q PSK modulation and demodulation principle and process, M atlab through the process of programming, analysis of signal processing in the ideal channel noise channel analog transmission of time-domain diagram, and Monte Carlo methods discussed in the process of simulation BER results are basically consistent with the theoretical results. Key words: Q PSK System Simulation Monte Carlo Analysis of M atlab
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Author: zhanghuan |
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Description: 汪裕民的OFDM关键技术与应用中仿真MIMO-OFDM的源代码，个人做了些改动，但是误码率比较大，望大牛帮忙调一下-汪裕public key technology and application of OFDM in MIMO-OFDM simulation of the source code, made some personal changes, but the error rate is relatively large, look like large cattle to help tune
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Author: 唐超 |
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Description: 伪随机数的产生程序 有m序列还有同余序列等等 用与嵌入信息位置的选择或密钥的制作-Pseudo-random number generation process has m sequences are congruent with and embedded in sequence and so the choice of location information or the production of key
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Author: 长风 |
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Description: 這是一個求數獨遊戲的m-file
在matlab的命令窗口
鍵入>> sudo7
或者run sudo7 的m-file
之後在 9x9 的方格內 填入 數獨的問題
按下 "計算是否有解" 的功能鍵
若不是存在多組的解，則可以
按下 "顯示結果" 的功能鍵，
也可以載入作者測試的"date1"或"date2"
但不可載入及修改"condition"-This is a Sudoku game for the m-file in matlab command window type>> sudo7 or run sudo7 the m-file after the box in the 9x9 Sudoku Fill in the question of pressing the calculate whether the solvability feature key if it were not for the existence of multiple solutions, you can press the show results of the function keys can also be included in the authors test date1 or date2 but not loading and modification of condition
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Author: ho io tong |
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Description: 一个matlab的基于SIFT算子的logo图像识别代码-A SIFT-based matlab operator identification code of the logo image
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Author: 伟峰 |
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Description: 基于傅立叶－梅林变换的matlab编写的配准系统，运行fm_gui.m后即出现演示界面，左侧的两个图形框选择待配准的两幅图像，图像可以进行缩放旋转变换。右侧的列表框"Window"下可以选择滤波窗，"Rotation"、"Scale"、"Log-polar"可分别选择旋转、缩放、以及对数极坐标变换所用的插值方法，按键"REGISTER"下的滑动
键可选备选的峰值点总数，点击"REGISTER"按键，
对应的下方图形框即显示配准后的两幅图像，最下方的"Translation"、"Rotation"和"Scale"文本框分别显
示待配准图像间的偏移、旋转、缩放参数。-Based on the Fourier- Mellin transform matlab prepared with System, after having run the demo fm_gui.m interface, the left side of the box to choose the two graphics to be matching the two images, the image can zoom in and out rotation. The list on the right box " Window" under the option of filtering window, " Rotation" , " Scale" , " Log-polar" can choose to rotate, zoom, as well as the number of polar coordinate transform of the interpolation method used, button " REGISTER" sliding under the optional options key points of the total number of peaks, click on " REGISTER" button below the corresponding graphic box that is displayed after the registration of two images, the bottom of the " Translation" , " Rotation" and " Scale" text box Registration to be, respectively, show the offset between images, rotation, scaling parameters.
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Author: 刘子木 |
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Description: 求解TSP和MTSP的混合遗传算法_英文_-Abstract:M any app licat ions are invo lved w ith mult ip le salesmen each of w hom visits a subgroup
cit ies and returns the same start ing city. The to tal length of all subtours is required to be m ini2
mum. Th is is calledM ult ip le T raveling Salesmen P roblem (M TSP). There are various heurist ic
methods to obtain op t imal o r near2op t imal so lut ions fo r the TSP p roblem. But to the M ult ip le
T raveling Salesmen P roblem , there are no t much app roaches to so lveM TSP. In th is paper, a hy2
brid genet ic algo rithm to so lve TSP and M TSP is p resented. Th is algo rithm combines GA and
heurist ics. N umerical experiments show that the new algo rithm is very efficient and effect ive.
Key words: TSP op t im izat ion genet ic algo rithm 2op t
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Author: Notics |
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Description: 根据网上的资料自己做的harris角点检测实验，参考程序文件夹中是网上搜集到得程序，参考资料中是4篇我觉得还不错的论文。还有自己拍摄的7幅供测试用的图片。whole.m为主程序，直接运行即可。程序的主要功能是球出了途中角点的坐标并且利用曲面拟合的方法求出了其亚像素坐标。程序中的关键地方均有注释。对研究harris角点检测的朋友很有帮助。-According to online information on their own do harris corner detection experiments, refer to the Programs folder is collected online to get program, reference is pretty good I think the four papers. Also has its own shooting 7 for testing with the pictures. whole.m-based program can be run directly. Program main function is to corner the ball out of the way and use the coordinates of surface fitting method derived its sub-pixel coordinates. The key parts of the program are comments. Research harris corner detection friends helpful.
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Author: 张裕 |
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Description: 几点说明：
1、source_main.m为主函数，qpsk.m和spread.m为子函数；
2、在matlab工程目录下运行source_main.m即可；
3、为方便大家理解，特以P-CCPCH信道的处理进行了举例，若大家认为资料有用的话请回帖，
我会将整个WCDMA下行信号源的matlab代码提供给需要的人；
4、为方便初学者学习，特提供了我自己开发时参考的3GPP资料，并在关键位置做了记号。
-Some explanations: 1, source_main.m main function, qpsk.m and spread.m as Functions 2, matlab project directory can be run source_main.m 3, to facilitate us to understand, especially for P-CCPCH channel processing of the example, if we consider the information useful, please Replies, I will put the WCDMA downlink signal source matlab code available to people in need 4, for the convenience of beginners to learn, especially when providing a reference to my own development 3GPP information, and in key positions in the mark.
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Author: 卢婷 |
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Description: 主要是实现调制识别，区分几种常用的数字调制信号，包括ASK,FSK,PSK,QAM。含有两个文件夹 其一为特征参数的仿真；其二为正确识别率的仿真。
文件夹key feature simulink中：
运行程序会得到各特征参数之间区分图 从图中可看到特征参数的有效性。
文件夹classification rate simulink中：
运行main.m文件 可以得到正确识别率 -Mainly to achieve modulation recognition, distinction of several commonly used digital modulation signals including ASK, FSK, PSK, QAM. One folder contains two characteristic parameters for the simulation second simulation for the correct recognition rate. Folder key feature simulink in: run the program will have the distinction between the characteristic parameters can be seen from the diagram Fig characteristic parameters of effectiveness. Folder in the classification rate simulink: Run main.m file to get the right recognition rate
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Author: 夏英杰 |
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Description: 阐述了MATLAB 与VC 交互的三种方式, 深入分析了MATLAB 引擎的原理和使用方式, 详细地论述了使用MATLAB 自
带编译器和使用MATCOM 对MATLAB 的M 文件进行代码转换的步骤。针对每种方式给出了关键代码, 并对三种方式进行
比较, 分析各自适用的场合和利弊, 得出MATLAB 与VC 进行交互的最优方式, 使得MATLAB 强大的计算能力和数据处理能
力与VC 优秀的编程能力结合起来。-MATLAB and VC elaborated interact in three ways, in-depth analysis of the principles and use MATLAB Engine manner discussed in detail using the MATLAB built-in compiler and use MATCOM on MATLAB M-files are transcoded steps. For each method gives the key code, and three ways to compare, analyze their possible applications, and the pros and cons, MATLAB and VC obtained the optimal way to interact, making the powerful MATLAB computing power and data processing capabilities and VC Excellent programming skills together.
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Author: renxiaoqian |
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Description: 内燃机关键部件计算，可以方便的进行校核计算，基于MATLAB(Calculation of key components of internal combustion engine)
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Author: 昵称4 |
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