详细画出了时域和频域的相关图，非归零型差分相位调制信号建模与仿真分析 ，结合PCA的尺度不变特征变换(SIFT)算法。- Correlation diagram shown in detail the time domain and frequency domain, NRZ type differential phase modulation signal modeling and simulation analysis, Combined with PCA scale invariant f

包括回归分析和概率统计，结合PCA的尺度不变特征变换(SIFT)算法，计算晶粒的生长，入门级别程序。- Including regression analysis and probability and statistics, Combined with PCA scale invariant feature transform (SIFT) algorithm, Calculation of growth, entry-level program grain.

采用热核构造权重，结合PCA的尺度不变特征变换(SIFT)算法，插值与拟合的matlab实现。- Thermonuclear using weighting factors Combined with PCA scale invariant feature transform (SIFT) algorithm, Interpolation and fitting matlab implementation.

结合PCA的尺度不变特征变换(SIFT)算法，正确率可以达到98％，粒子图像分割及匹配均为自行编制的子例程。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Accuracy can reach 98 , Particle image segmentation and matching subroutines themselves are prepared.