直线阵采用切比学夫加权控制主旁瓣比，结合PCA的尺度不变特征变换(SIFT)算法，供做算法研究人员参考。- Linear array using cut than learning laid upon the right control of the main sidelobe ratio, Combined with PCA scale invariant feature transform (SIFT) algorithm, Algorithm for researchers to do reference.