In the light of this limitation, an algorithm for extracting minutiae based on differential code is proposed.

针对这一缺陷，本文提出了一种基于差分码的细节特征点提取方法。

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Differential Manchester code is fit for TWACS according to the speciality of modulation signal.

由于其调制信号的特殊性，很适合差分曼彻斯特编码。

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Differential unitary space-time code(DUSTC) keeps good performance in rapidly fading channels when neither the transmitter nor the receiver knows the channel state information.

差分酉空时码不需要任何信道状态信息，在通信终端处于高速移动环境下的快变衰落信道中仍能保持较好的性能。

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It's entirely arbitrary to treat differential rates for different levels of income as a structural feature of the tax code but differential rates for different types of income as a tax expenditure.

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