接受者操作特性曲线（receiver operating characteristic curve，简称ROC曲线），又称为感受性曲线（sensitivity curve）。得此名的原因在于曲线上各点反映着相同的感受性，它们都是对同一信号刺激的反应，只不过是在几种不同的判定标准下所得的结果而已。接受者操作特性曲线就是以虚惊概率为横轴，击中概率为纵轴所组成的坐标图，和被试在特定刺激条件下由于采用不同的判断标准得出的不同结果画出的曲线
Receiver operating characteristic curve (ROC curve) is also called sensitivity curve. The reason for this name is that each point on the curve reflects the same sensitivity. They are all responses to the same signal stimulus, but only the results obtained under several different criteria. The receiver operating characteristic curve is a coordinate map composed of virtual panic probability as the horizontal axis and hitting probability as the vertical axis, and the curve drawn by different results obtained by different judgment criteria under specific stimulus conditions (2020-11-20, matlab, 1KB, 下载0次)
754/5000
Dynare解决的模型包括那些依赖于理性预期假设的模型，代理商形成他们的期望Dynare还能够处理期望形成不同的模型：在一个极端，代理商完美地预测未来的模型; 在另一个极端，代理人有限理性或不完善的模型经济状况的知识，因此，通过学习过程形成他们的期望。
Dynare is a software platform for handling a wide class of economic models, in particular dynamic stochastic general equilibrium (DSGE) and overlapping generations (OLG) models. The models solved by Dynare include those relying on the rational expectations hypothesis, wherein agents form their expectations about the future in a way consistent with the model. But Dynare is also able to handle models where expectations are formed differently: on one extreme, models where agents perfectly anticipate the future; on the other extreme, models where agents have limited rationality or imperfect knowledge of the state of the economy and, hence, form their expectations through a learning process. In terms of types of agents, models solved by Dynare can incorporate consumers, productive firms, governments, monetary authorities, investors and financial intermediaries. (2019-03-11, matlab, 838KB, 下载2次)
本文讨论的四轴飞行器是一种四旋翼飞行器。
首先介绍四轴飞行器的飞行控制原理；其次逐个阐述了基于 ＣＣ３２００单 片机和 ＭＰＵ６０５０加 速度计／陀 螺 仪 的 迷 你 四 轴
飞行器的各个关键模块，从软件和硬件的角度分别描述了各模块的实现和整合；最后，分析了该 四 轴 飞 行 器 的 试 飞 结 果
以及该飞行器的一些不足
This paper discusses the four axis aircraft is a kind of four rotor aircraft.
First of all, the flight control principle of four axis vehicle is introduced. Secondly, the mini- axis of CC3200 and MPU6050 accelerometer/gyroscope are described one by one
The realization and integration of each module are described the point of view of software and hardware. Finally, the flight test results of the four axis vehicle are analyzed
And some deficiencies of the aircraft (2017-03-27, C/C++, 155KB, 下载2次)
考虑一个平面应力问题，如图所示，假设厚度h 1，材料为各项同性，杨氏模量为E 1，泊松比v 0，相关力和位移边界条件如图中所示，问题左端为固定约束。试用两个三角形单元分析此问题。试求问题各节点位移u、v和应力σ_x、σ_y和σ_xy。
Consider a plane stress problem, as shown, assuming thickness h 1, the material is homogeneous, Young s modulus E 1, Poisson s ratio v 0, the correlation force and displacement boundary conditions shown in the figure , The left side of the problem is a fixed constraint. Try using two triangular cells to analyze this problem. The displacements u, v and stress σ_x, σ_y and σ_xy of each node are calculated. (2017-02-07, matlab, 6KB, 下载13次)
卡耐基梅隆大学创建开源工具，直接从2D图像“取出”3D物品.
OM3D 软件 单幅图像进行三维重建，2014年5月份刚发布
在Xcode 5.1 on OS X 10.9上调试运行
OM3D, the software to perform 3D object manipulation in photographs using stock 3D models. We provide the source code for this project here. All code has been written and tested in Xcode 5.1 on OS X 10.9.
We provide this software under the GNU General Public License v2.0. Details about the license in the LICENSE.txt file.
We provide three Xcode projects in individual directories as follows (2015-01-29, matlab, 26187KB, 下载63次)
本文在Matlab R2012a下面实现了fisherface算法，选用的人脸库是ORL，其中有40 人，每人有10幅不同的人脸图像。本文选取了每人9幅作为训练(1幅作为测 试)，图像大小为112x92。
主程序入口：Main.m
读取样本：CreatDatabase.m
FisherFace核心：FisherFaceCore.m
识别：Recognition.m
训练样本库：TrainDatabase
测试样本库：TestDatabase
不足：识别准确率有待提高。
In this paper, Matlab R2012a achieved fisherface following algorithm is chosen face database ORL, in which 40 people, each person will have 10 different facial images. This paper selected as the training 9 per person (one as a test), the image size is 112x92.
Main entrance: Main.m
Read sample: CreatDatabase.m
FisherFace Core: FisherFaceCore.m
Identification: Recognition.m
Training sample library: TrainDatabase
Test sample library: TestDatabase
Inadequate: recognition accuracy to be improved. (2014-05-28, matlab, 4139KB, 下载20次)
克里金二维、三维插值。是斯坦福油气预测中心C.V. Deutsch写的。本网站上也有些人上传了代码，但是往往都不全，我从本网站下下来后没有一个可以正常使用；这个是我从作者原始网页上下载的程序，并将编译语句写成SHELL语句。我上传的这个程序，确保可以编译、运行、出结果。首先运行文件夹中的Compile编译然后运行exe执行。
Kerry Jiner Wei, three-dimensional interpolation. Stanford hydrocarbon prediction center CV Deutsch wrote. Some people on this site have uploaded the code, but often not the whole, I am from this site down after no one can normally use This is what I downloaded from the website of the original program and compile written statement SHELL statement. I uploaded this program to ensure that you can compile and run, the result. Compile to compile the first run in a folder and then run exe execution. (2014-03-11, Fortran, 548KB, 下载55次)
题目：已知被控对象为 1/(10s+1)*exp(-0.5s)。假设系统给定为阶跃值r＝30，采样时间为0.5s，系统的初始值r(0)＝0。试分别设计：
(1)常规的PID控制器；
(2)常规的模糊控制器；
分别对上述2种控制器进行Matlab仿真，并比较控制效果
Topic: Known charged object is 1/(10s+1)* exp (-0.5s). Assume that the system is given as the step value r = 30, the sampling time of 0.5s, the system the initial values of R (0) = 0. Trial were designed: (1) conventional PID controller (2) conventional fuzzy controller Matlab simulation of the two kinds of controllers, respectively, and compare the control effect (2013-03-19, matlab, 168KB, 下载187次)
绘制电容电压变化曲线
电阻、电感、电容串联电路R、L、C，试求电路突然接通电源E时，电源电压uc(t)的变化规律，并绘制R=1,L=0.5,C=1,E=1,uc（0）=0，uc’（0）=0时的电容电压uc(t)d 的变化曲线。
Draw capacitance voltage variation curve resistor, inductor, capacitor series circuit of the R, L, and C, Find circuit suddenly turned on the power supply E, the variation of the supply voltage uc (t), and draw the R = 1, L = 0.5, C = 1, E = 1, UC (0) = 0, uc ' (0) = 0 when the capacitor voltage uc (t) is the change of d curve. (2013-01-03, matlab, 30KB, 下载11次)
AM、DSB 调制及解调
用matlab产生一个频率为1Hz，功率为1的余弦信源m(t)，设载波频率ωc =10 Hz，
m0 = 2 ,试画出：
AM 及DSB 调制信号的时域波形；
采用相干解调后的 AM 及DSB 信号波形；
AM 及DSB 已调信号的功率谱；
调整载波频率及 m0，观察分的AM 的过调与DSB 反相点现象。
在接收端带通后加上窄带高斯噪声，单边功率谱密度0 n = 0.1，重新解调。
AM, DSB modulation and demodulation
Matlab produce a frequency for 1 Hz, power of 1 cosine source m (t), set the carrier frequency ω c = 10 Hz,
M0 = 2, try drawing out:
(2012-03-30, matlab, 122KB, 下载41次)
数独游戏的MATLAB实现！还能帮助玩家完成数独游戏。
SUDOKUE play sudoku with MATLAB (aids for solving included)
A guide on how sudoku works can be found e.g. on
http://en.wikipedia.org/wiki/Sudoku
This program has a history-function, i.e. you can undo and redo each
single step. You can also save and load a score including all settings
(execpt for the branching solver).
New games can be imported either as ASCII-string or from sdm- or
sdk-files resprectively. Puzzles in ASCII-Format or as sdm- or sdk-file
respectively can be found e.g. on http://www.sudocue.net (2012-03-22, matlab, 6KB, 下载21次)
4. 试说明卷积编解码的工作原理。请用Simulink仿真卷积编码，并用Viterbi译码的方法进行解码，其中的编码、译码全部是自己编写代码(S-Function方式)，不是调用Simulink的已有编码、译码函数。请在加性白高斯噪声信道中，画出比特信噪比与误码率的关系曲线。
4 Explain the working principle of convolutional encoding and decoding. Please use the Simulink simulation convolutional coding and Viterbi decoding method used to decode, in which the encoding, decoding all write your own code (S-Function mode), instead of calling the Simulink existing encoding and decoding functions. In additive white Gaussian noise channel, signal to noise ratio and bit error rate to draw the curve. (2011-07-20, matlab, 43KB, 下载80次)
6QAM通过带限信道，设码元速率为1000波特，传输信道特性为滚降系数为0.75的滚升余弦频谱的滤波器，试建立测试模型并观察接收信号（等效基带信号）的眼图、星座图和相位转移轨迹图。simulink模型
6QAM through the band-limited channel, located at 1000 baud symbol rate, the transmission channel characteristics for the roll-off factor of 0.75 of spectrum raised cosine filter roll and try to create a test model and observe the received signal (the equivalent baseband signal) of the eye diagram, constellation and phase transfer trajectories. simulink model (2011-06-06, matlab, 4KB, 下载46次)
约瑟夫问题的实现：设有n个人围坐在圆桌周围，现从某个位置m（1≤m≤n）上的人开始报数，报数到k的人就站出来。下一个人，即原来的第k+1个位置上的人，又从1开始报数，再报数到k的人站出来。依此重复下去，直到全部的人都站出来为止。试设计一个程序求出出列序列。
Joseph realized the problem: There are n people sitting around the round table, is from a position of m (1 ≤ m ≤ n) reported on the number of people began to be reported to the k number of people to come forward. The next person, that is, the original positions on the first k+1 people, and from the number reported at 1, then the number reported to the k to stand up. So repeat this until all the others can stand up. Try to design a program derived from the column sequence. (2011-03-23, C/C++, 1KB, 下载3次)
基于SVM的文本无关说话人识别算法研究，本文在最后用Matlab程序实现了一个基于支持向量机的说话人识别系统试验平台。并根据对参试者进行的大量身份测试试验，总结系统的各方面性能和分析存在的问题，为进一步研究提供了方向和宝贵的经验。
SVM-based text independent speaker recognition algorithm, the paper used in the final implementation of a Matlab program based on support vector machine speaker recognition system test platform. And tested based on the identity of those who carried out a large number of test trials, summed up the system performance and analysis of all aspects of the problems, provide a direction for further research and valuable experience. (2011-03-20, matlab, 1798KB, 下载127次)
沃伦·巴菲特（Warren Buffett，1930年8月30日－），美国投资家、企业家、及慈善家，被称为股神，尊称为“奥玛哈的先知”、或“奥玛哈的圣贤”，目前拥有约620亿美元的净资产，根据《福布斯》杂志公布的2008年度全球富豪榜，他已经超过卡洛斯·斯利姆·埃卢和比尔·盖茨成为全球首富。
Warren Buffett (Warren Buffett, 1930 Nian 8 30-), American investors, entrepreneurs, and philanthropist, known as Unit God, affectionately known as " Omaha' s prophet," or " Omaha sages " , now has about 620 billion in net assets, according to" Forbes " magazine published 2008 annual global rich list, he has more than Carlos Slim Helu and Bill Gates as the world' s richest man. (2010-02-03, PDF, 6222KB, 下载5次)
一是利用计算机对正整数进行素因子分解认识素数，通过运用筛法与试除法寻找一定范围内的素数，体会到筛法比试除法有效但无法找出所有素数；二是通过若干特殊形式的素数的研究，寻找素数生成公式，发现一些结论；三是借助于非线性拟合技术，观察素数分布规律，利用其研究有关数论问题。
The first computer was used to prime factor decomposition of positive integers understanding of prime numbers, through the use of screening method and trial division to find prime numbers within a certain range, the division experienced a test of an effective screening method but can not identify all the prime numbers second is through a number of special form of prime numbers research, looking for prime number generation formula, found that some of the conclusions third, by means of non-linear fitting technique to observe the distribution of prime numbers, using their research on number theory problems. (2009-12-29, matlab, 218KB, 下载14次)
若锗中含有一定数量的杂质元素Sb，试根据要求分析杂质浓度与电离度以及电离温度之间的关系：
（1）当Sb浓度分别为 和 时，计算杂质99％，90％和50％电离时的温度各为多少？
（2）根据一定杂质类型和杂质浓度，画出电离度和温度的关系图线，并确定半导体处于强电离区（电离度>90％）的温度范围。
设计要求：（1）具有友好输入输出界面；
（2）调整输入数据，得出相应结果，并进行分析。
If the germanium containing a certain number of impurity elements Sb, test analysis in accordance with the requirements of impurity concentration and ionization degree, as well as the relationship between the ionization temperature: (1) When the Sb concentration and time were calculated 99 percent of impurities, 90 and 50 ionization When the temperature of each number? (2) according to certain types of impurities and impurity concentration, ionization degree and temperature to draw the relationship between the graph lines, and to determine the semiconductor in a strong ionization zone (ionization degree (2008-07-16, matlab, 2KB, 下载24次)
若锗中含有一定数量的杂质元素Sb，试根据要求分析杂质浓度与电离度以及电离温度之间的关系：
（1）当Sb浓度分别为 和 时，计算杂质99％，90％和50％电离时的温度各为多少？
（2）根据一定杂质类型和杂质浓度，画出电离度和温度的关系图线，并确定半导体处于强电离区（电离度>90％）的温度范围。
设计要求：（1）具有友好输入输出界面；
（2）调整输入数据，得出相应结果，并进行分析。
If the germanium containing a certain number of impurity elements Sb, test analysis in accordance with the requirements of impurity concentration and ionization degree, as well as the relationship between the ionization temperature: (1) When the Sb concentration and time were calculated 99 percent of impurities, 90 and 50 ionization When the temperature of each number? (2) according to certain types of impurities and impurity concentration, ionization degree and temperature to draw the relationship between the graph lines, and to determine the semiconductor in a strong ionization zone (ionization degree (2008-07-16, matlab, 3KB, 下载30次)
小波模极大源代码，可用来进行小波降噪或小波模态参数识别，该代码为斯坦福大学源码。
wavelet modulus maxima source code, which can be used for wavelet denoising or wavelet modal parameter identification, The code for the source of Stanford University. (2007-06-08, matlab, 4KB, 下载784次)