频谱检测技术和频谱分配技术是决定认知无线电能否实现的两个关键技术。

Spectrum sensing and spectrum allocation are two key technologies that play an important role in CR realization.

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另外，采用软件无线电能进行多载波处理，减少射频通道数，缩小体积，节约成本。

Additionally, another advantage of software radio is that it can process multi-carrier, decrease the RF channel, lessen the devices 'solidity, and save the its cost.

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然而，通常意义下无线电能传输技术只能以“点对点”模式实现电源对受电设备的直接供电。

However, classic wireless power transfer technology can only resort to "Point to Point" mode to realize direct power supply form power source to load.

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