接着，探讨软件无线电中的多速率信号处理技术，重点分析软件无线电中的带通信号正交抽取结构；

Then, it discusses multi rate digital signal process (MRDSP) technology in SDR, emphasis is put on the analysis of band pass signal orthogonal sampling structure.

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用无线电指示人员进入餐厅并呆在那儿，并派一名操作人员带一部无线电（对讲机）从北区到那儿去，检查人员并不许任何人离开。

Instruct people by radio to go into the canteen and stay there and send one operator from North to go there with a radio to do a check of people and stop anyone leaving.

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研究了软件无线电中广泛采用的带通采样技术。

In this paper, bandpass sampling technology widely used in software defined radio is studied.

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