对基于入侵模式的特征，采用了一种改进的快速多模式匹配算法可以一次在包的负载中查找多个入侵模式。

For intrusion pattern based signature detection, an improved quick multi-pattern matching algorithm is adopted, which can search for multiple patterns by scanning the packet once.

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模型引入了状态转移概念并将模式匹配检测和状态转移检测结合在一起，克服了已有模型只专注于单一特征检测的缺陷。

The model introduced state shift concept and inosculated pattern match detection and state shift detection, which overcame the shortcoming that other models detected only using single character.

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通过分析采样数据和比较各车型波形后，采用实际采样波形的幅值作为车型分类判据标准，整条波形的采样值作为模式匹配的特征参数。

After analyzing data and comparing automobile type of data ware, the max-data as criterion of vehicle classification, whole sample's data as character parameter of pattern matching.

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