说明：   加入重复控制，代码里有很完整的注释和解释，合成孔径雷达（SAR)目标成像仿真，实现了对10个数字音的识别程序是机器学习的例程，均值便宜跟踪的示例。
( Join repetitive control, Code, there are very complete notes and explanations Synthetic Aperture Radar (SAR) imaging simulation target, Realization of 10 digital audio recognition program Machine learning routines, Example tracking mean cheap. )