UWB technology is a new exploration of the use of radio spectrum resource and it inaugurate a new field of time domain application of electromagnetic wave.
利用UWB技术是对无线频谱资源的利用进行的新的探索，开辟时域电磁波应用的新领域。
Similarly, some sensors already make more efficient use of another scarce resource: radio spectrum.
与之相似的是，某些传感器已在更高效地利用另一种稀有来源——射电谱。
The spectrum allocation technology, which is one of the key technologies of cognitive radio, the research emphasis is how to manage the spectrum resource effectively.
认知无线电的频谱分配技术研究的是如何对检测到的空闲频谱资源进行有效的管理，是认知无线电系统的一项关键技术。
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