xujing

无约束条件的最优控制，并且举例说明程序如何运行(Unconstrained optimal control, and examples)

fingerprint autneication

直接序列扩频（Direct Sequence Spread Spectrum）工作方式，简称直扩方式（DS方式）。就是用高速率的扩频序列在发射端扩展信号的频谱，而在接收端用相同的扩频码序列进行解扩，把展开的扩频信号还原成原来的信号。(irect Sequence Spread Spectrum (Direct Sequence Spread Spectrum), hereinafter referred to as Direct expansion mode (DS). Is a high rate of spread spectrum sequence extension in signal spectrum, and at the receiving end with the same spread spectrum code sequence for expansion, the expansion of the spread spectrum signal back into the original signal. )

通过粒子群算法实现pid参数的自整定。内容涵盖matlab程序和SIMUILINK仿真。已调试。(PID parameter tuning of particle swarm optimization)

wavelet,can try it over matlab 6.0(wavelet, can try it over matlab 6.0)

direct torque control of bldc with low torque ripple

matlab中PCA-fisher判别法，对数据降维有很好的效果，附件中是matlab2007源程序，不同的matlab版本需要稍微修改一下；谢谢(Discriminant law PCA-fisher MATLAB, to reduce the dimension of data have a good effect, accessory is the MATLAB2007 source code, a different version of the MATLAB needs to be slightly modified thank you )

说明：  MATLAB6.0数学手册-第3章，一本易于掌握的数学手册，内容由浅入深，对于初学者能很快掌握。(The MATLAB6.0 mathematics Manual- Chapter 3, a mathematical manual is easy to grasp, easy-to-digest content for beginners can quickly master.)

time-invariant degradation models and stationary signals and noise, the classical Fourier domain Wiener filter, which can be implemented in O(N logN) time, gives the minimum mean-square-error estimate of the original undistorted signal. For time-varying degradations and nonstationary processes, however, the optimal linear estimate requires O(N2) time for implementation. We consider filtering in fractional Fourier domains, which enables significant reduction of the error compared with ordinary Fourier domain filtering for certain types of degradation and noise (especially of chirped nature), while requiring only O(N logN) implementation time. Thus, improved performance is achieved at no additional cost. Expressions for the optimal filter functions in fractional domains are derived, and several illustrative examples are given in which significant reduction of the error (by a factor of 50) is obtained.

非常适合计算机视觉方面的研究使用,仿真图是速度、距离、幅度三维图像，包括AHP，因子分析，回归分析，聚类分析。( Very suitable for the study using computer vision, FIG simulation speed, distance, amplitude three-dimensional image, Including AHP, factor analysis, regression analysis, cluster analysis.)