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Jacobi
Jacobi矩阵一般是坐标变换时用的——这个坐标系的坐标依次对那个坐标系的坐标求偏导数即得Jacobi矩阵。积分时从直角坐标变到球坐标、极坐标肯定要在积分号里乘上Jacobi矩阵的行列式。
若其特征值全为正，则此Jacobi矩阵正定，即它的任何二次型都大于零。并且如果是对称Jacobi矩阵，还可以实相合于一个单位阵。是比较强的条件。矩阵A的特征值是这个关于x的方程的所有根
det(A-xI)=0(Jacobi)
- 2010-12-20 23:19:38下载
- 积分：1
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freqres
Frequency response of second order system
- 2012-08-24 13:04:50下载
- 积分：1
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Automatic-Detection-and-Elimination-of-an-Optic
Automatic Detection and Elimination of an Optic
Disc for Improving Drusen Detection Accuracy.Age Related Macular Degeneration (ARMD) is the most
common cause of blindness
- 2014-12-06 01:17:37下载
- 积分：1
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0502_2
基于matlab的8-3编码器，使用模块实现编码，并进行封装(8-3 matlab-based encoder module using coding and packaging)
- 2014-07-10 19:44:18下载
- 积分：1
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wavelet
用Matlab编程实现小波变换小波变换的mallat算法，多孔算法，小波提升算法(Programming with Matlab wavelet transform mallat wavelet transform algorithm, porous algorithm, wavelet lifting scheme)
- 2010-06-21 16:01:42下载
- 积分：1
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helicopter-flying-control
一个实现对直升机进行飞行控制的程序，包括俯仰控制、滚转控制等。(A realization on the helicopter flight control procedures, including pitch control, roll control.)
- 2014-10-23 16:23:19下载
- 积分：1
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AppliedBayesianStatistics
关于贝叶斯统计模型的经典好书，详细介绍各种贝叶斯模型以及求解方法(introduce bayesian statistics,including a variety of models and methods,such as Linear Regression Model, mcmc, and so on)
- 2010-06-09 18:17:44下载
- 积分：1
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guidinghua
直方图规定化，用于matlab图像处理。所谓直方图规定化，就是通过一个灰度映像函数，将原灰度直方图改造成所希望的直方图。所以，直方图修正的关键就是灰度映像函数。(Histogram specification for matlab image processing. The so-called histogram specification is through a grayscale image function, the original histogram transformed into the desired histogram. Therefore, the key is the gray image histogram correction function.)
- 2014-11-05 15:39:53下载
- 积分：1
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buck_boost
Buck-Boost电路仿真，用simulink仿真的。针对初学者大家相互学习。(Buck-Boost circuit simulation with simulink simulation. For beginners learn each other.)
- 2020-12-19 12:09:11下载
- 积分：1
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ABS
研究了汽车制动过程中车速、轮速等的变化过程和影响因素；以化整为零的思想，研究得到制动过程中各物理量间的微分方程关系；进而建立在ABS下的数学模型；继而通过使用simulink建立仿真模型；采取逻辑门限的控制方法，综合仿真的整个动态变化过程；得到车速、轮速、滑移率、路面附着系数和制动距离随时间的变化曲线；最后利用图像分析的方法对各物理量进行分析、比较，对比有无ABS系统下制动距离的变化，得出使用ABS控制策略能显著缩短制动距离，提高制动安全性。数据分析和处理主要应用MATLAB软件。(The braking dynamics model of quarter vehicle ABS is established. It simulates the dynamic behavior of a vehicle under hard braking conditions. We researched the change of the vehicle speed and wheel speed during the vehicle braking. According to Newton s first and second law, then dfferential equations are obtained, so we get the Mathematical model. Next the response of the system is simulated by using Simulink in MATLAB . Based on the logic threshold control, we get the curve that Speed, wheel speed, slip ratio and road adhesion coefficient and brake distance changes over time. Contrasting with ABS or without ABS , using the ABS control strategy can significantly shorten the braking distance. Data analysis and processing mainly used MATLAB software.)
- 2020-11-26 11:39:30下载
- 积分：1
