0920020009

Principal component analysis (PCA) is a popular tool for linear dimensionality reduction and feature extraction. Kernel PCA is the nonlinear form of PCA, which is promising in exposing the more complicated correlation between original high-dimensional features. In this paper, we first talk about the basic ideas of PCA and kernel PCA, and then focus on the reconstruction of pre-images for kernel PCA. We also give an introduction on how PCA is used in active shape models (ASMs), and discuss how kernel PCA can be applied to improve traditional ASMs. Then we show some experiment results to compare the performance of kernel PCA and traditional PCA for pattern classification. We also implement the kernel PCA-based ASMs, and use it to construct human face models.

darkeden 6.67 ver exe file!!

按照3GPP标准，19个蜂窝小区（六边形）的建立(According to the 3GPP standard, 19 cell (hexagon) Establishment)

微电网能量管理系统，能量优化，环境的预测(Micro-grid energy management system, energy optimization, environmental prediction)

研究生时的现代信号处理的作业，pwm整流器的建模仿真，基于SVPWM的三电平逆变的matlab仿真。( Modern signal processing jobs when the graduate, Modeling and simulation pwm rectifier Based on SVPWM three-level inverter matlab simulation.)

永磁同步电机SVPWM调速控制，适用于matlab7.0以上版本(SVPWM speed permanent magnet synchronous motor control, apply to more than matlab7.0 version)

利用Matlab生成GPS C/A 码的基带信号。 （1）产生卫星PRN 号码为“5”的一组C/A 码； （2）循环生成25 页的导航数据，GPS 时间可填入一固定的已知数值； （3）生成C/A 码扩频信号，每个C/A 码码片给出4 个采样数据； （4）基带信号采用方波信号，电平为0 和1，占空比为50 ％，不加入噪声，进一步生成某个特定的中频信号。(Matlab generated using GPS C/A code base band signal. (1) generation of satellite PRN number is " 5" a set of C/A code (2) loop generates 25 of the navigation data, GPS time can fill a fixed known value (3) to generate C/A code spread spectrum signal, each C/A code chip gives the four sampling data (4) baseband signals using square wave signal, level 0 and 1, 50 duty cycle, not to join the noise generated further a specific frequency signal.)

说明：  SARwk算法回波仿真matlab程序，有详细的注释(Sar wk algorithm echo simulation matlab program, with detailed comments)

录制一段噪声，利用matlab对该材料进行声音的频谱分析。(Record a noise, the use of the material to matlab sound spectrum analysis.)

making jacobian matrix power system