如何改善IGBT驱动波形

我们试验的时候,测量到IGBT驱动波形如附件图所示,好像是有振荡.
从单片机出来的波形、光耦后侧的波形都很好,
但驱动器后边的波形就成了这个样子.实际采用的驱动电阻比推荐值大.

请问,这些波形是否可以接受?如何抑止这种波形畸变呢?

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