Besides, the CR users with high SNR will send assistant information to the ones with low SNR in order to help them complete the local spectrum sensing by double adaptive thresholds energy detection.
此外，信噪比(SNR)高的认知用户，向信噪比低的认知用户发送辅助信息，以帮助它们利用自适应双门限法更加准确地完成本地频谱检测。
This paper presents a self-adaptive vowel-frame detection algorithm based on energy distribution analysis in frequency domain.
本文提出了一种基于频域能量分布分析的自适应元音帧提取算法。
Based on the analysis and on the ratio between region energy threshold difference and region area, the adaptive multiscale edge detection method is developed.
在此基础上提出了一种基于区域能量阈值差与区域面积比值的自适应多尺度方法，最后给出了仿真实验以及与传统方法的对比。
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