1.The desynchronization attack is very difficult to tackle and still an open question.

1.去步攻击很难对付，依然是一个悬而未题。

2.In the meantime, mechanisms against desynchronization attacks and cepstrum filtering are introduced to enhance robustness.

2.时，入抗异步攻击机制和倒谱滤波，增强了算法鲁棒性。