首先，找出 上所有的极值点，然后用三次样条函数曲线循序连接所有的极大值点，得到信号 的上包络线 ，采用同样的方法连接所有的极小值点，得到 的下包络线 。循序连接上、下两条包络线的均值可得到一条均值线 ： （7－1） 再用 减去 得到 ： （

Packet : xiaobofenxi_huang.rar filelist
xiaobofenxi_huang.m

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