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，pwm整流器的建模仿真。- 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, Modeling and simulation pwm rect