在分析研究空中目标特征指标的基础上，提出并建立了基于灰色关联的目标识别模型。

After analyzing the feature indexes of air targets, a target identification model based on grey relation is presented.

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空中运动多目标识别与跟踪技术是武器电视跟踪系统中的关键技术。

Multi_object recognizing and tracking is key technology of weapon tracking system.

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目标识别是防空信息处理中的一个重要环节，而对空中目标类型的识别仍没有成熟的理论。

Target recognition is an important link in the chain of information processing for air -defense. Yet, there is not any ripe theory for air target type recognition.

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