view2dm123

稀疏核方法的逼近算法,Matlab实现，非常快速。(sparse kernel methods)

带白噪声的系统辨识仿真实验代码。系统参数在代码中给出。(A simulink of system identification with white noise.)

将一个m文件转成c /cpp文件并在VC中进行编译。这种方法有个烦人的地方，每次你都需要把matlab生成的一 大堆c和h文件考到vc中，比如我读入一副图片先做膨胀，再腐蚀，再进行小波变换，最后 显示。这样一个程序会生成大概150多个文件，每次都要拷贝这些文件很不方便。我试着用 了另外一种方法，可以简化这些工作。那就是不生成cpp文件交给VC去编译，而是直接在m atlab中生成一个dll交给VC去链接即可。这样无论matlab生成多少文件，都只需要拷贝三 个文件即可。 (m to a document conversion c/cpp files and compile VC. Such a method is a nagging place every time you need Matlab has generated a lot of c and h vc document examination, for example, I read a photo, first expansion, and corrosion, further wavelet transform, the last show. Such a procedure will probably generate more than 150 documents, each copy of these documents must be very inconvenient. I tried another kind of approach can simplify their work. It is not generating cpp documents to the VC to compile, but m atlab directly in the formation of a dll to the VC to link. No matter how many documents generated Matlab, only three need to copy documents.)

说明：  一个JPA的学习资料。很适合初学者进行学习。对于初学者来说是个非常宝贵的资料。(A JPA of learning materials. Is suitable for beginners to learn. For beginners is a very valuable information.)

matlab实现粒子群算法，matlab实现粒子群算法。matlab实现粒子群算法。(PSO algorithm matlab implementation)

Shift a bit array 3 steps to the right

对于指纹图像,无论在频域或是在空域处理时,都要用到指纹的方向性信息,所以求取指纹方向图就显得格外重 要。求取指纹图像方向图的方法有很多种,文中列出了其中几种易于实现的算法。目的在于比较几种求取方向图的算法, 得到这几种方法的性能,以利于不同场合的要求。(good )

说明：  _余松煜数字图像处理，非常好的一本书~非常有用(_ Song-Yu Yu digital image processing, a very good book ~ very useful)

用实验方法测试RLC串联谐振电路的幅频特性曲线。当正弦交流信号的频率f改变时，电路的感抗、容抗随之而变.取电路电压U0作为响应，当输入电压Ui幅值维持不变时，在不同信号频率的激励下，测出U0之值，用LabVIEW程序完成频谱分析和滤波，变换等信号处理，即可测出RLC串联电路的谐振频率，(Amplitude-frequency characteristics experimentally tested RLC series resonant circuit curve. When changing the frequency f of the sinusoidal AC signal, the circuit inductance, capacitance change with Take circuit voltage U0 as a response when the amplitude of the input voltage Ui unchanged, signals at different excitation frequencies, the measured value U0, the process is complete spectrum analysis using LabVIEW and filtering, transform signal processing, can be measured RLC series circuit resonant frequency,)

采用MATLAB编写的，斜齿轮时变啮合刚度计算程序。原理参见李瑰贤的《宽斜齿轮副啮合刚度计算及扭振特性的研究》。(program to calculate the time-varing menshing stiffness of helical gear.)