A method of sliding mode control based on fuzzy logic, for a class of linear uncertain system shown in phase coordinate, is presented It if derived from the principle of sliding mode control.
本文针对一类相坐标表示的线性不确定系统，根据滑模控制原理，提出一种基于模糊逻辑的滑模控制方法。
By using the theory of partially coherent light, the analytical expression for the mode coherence coefficients of flattened Gaussian beams has been derived in the cylindrical coordinate system.
利用部分相干光理论，推导出柱坐标系下平顶高斯光束模相关系数的解析表达式。
In the B-mode sector scan ultrasonic imaging system, the raw image is in polar coordinates, therefore, it is main tasks of image pre-processing to achieve image coordinate transform and interpolation.
在B型超声机械扇形扫描成像当中，原始图像信号是以极坐标的形式输出的，对图像进行实时坐标变换和漏点插补是图像预处理所要解决的主要问题。
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