First, the theoretical foundation of hand vein recognition and some advantages of it compared to other biological feature recognitions.

首先分析了静脉识别的理论依据和它相对于其它生物特征识别的一些优点。

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Fingerprint recognition is considered as the comparative maturity technology in biological feature recognition whose algorithm performance has applied in practical products.

指纹识别技术相对来说是生物特征识别中比较成熟的一种身份确认技术，指纹识别算法性能已达到实用的程度。

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A biological recognition method by feature detection of human body on the move was presented, and the mathematical model of Doppler shift was established.

根据生物的生命体行为特征，提出一种新的生物识别方法，并建立了多普勒频移数学模型。

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