在频谱感知中，我们使用能量检测的方法，发现半投票准则是最优的融合准则。
We focus on energy detection for spectrum sensing and find the optimal fusion rule which is the half-voting rule.
频谱检测是感知无线电的关键技术之一，要求感知用户可靠、快速地检测频谱空洞。
Spectrum sensing technology is a key component of cognitive radio whose function is to find out the empty frequency bands quickly and reliably.
信号信息处理的新技术压缩感知，提供了认知无线电中宽带频谱检测的新方案。
Compressed sensing is a novel technology in signal information processing. It offers a new wide-band spectrum detection scheme in cognitive radio.
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