中文说明：主成分分析程序，又叫低秩矩阵分解，用于杂波抑制、特征提取等，可以很好地从复杂的背景中分离出目标成分，在分类识别中得到广泛应用
English Description：
Principal component analysis program, also known as low rank matrix factorization, is used for clutter suppression, feature extraction, etc. it can well separate the target components from the complex background, and is widely used in classification and recognition