基于Teager-Kaiser能量算子的宽带频域检测

M. Gautier, V. Berg, D. Noguet
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引用次数: 11

摘要

本文研究了电视白空间无线麦克风传感和窄带调频调制信号的有效检测。为此,提出了一种宽带频域分析方法。该操作所需的快速傅里叶变换可以在传感分析和调制函数之间共享。然后研究了一种基于Teager-Kaiser能量算子的决策度量,用于无线麦克风信号的分析。仿真结果表明,与时域方法相比,采用频域分析可获得6 dB的检测增益。Teager-Kaiser检测进一步提高了1.5 dB。这种性能可以在不增加复杂性的情况下达到。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Wideband frequency domain detection using Teager-Kaiser energy operator
This paper addresses wireless microphone sensing in the TV white space and efficient detection of narrowband FM modulation signals. To this end, a wideband frequency domain analysis is proposed. The required Fast Fourier Transform for this operation may be shared between sensing analysis and modulation functions. A particular decision metric is then studied for the analysis of wireless microphone signals based on the Teager-Kaiser energy operator. Simulation results show that 6 dB of detection gain could be achieved when using a frequency domain analysis compared to time domain methods. The Teager-Kaiser detection leads to further improvement of 1.5 dB. This performance could be reached at no extra cost in term of complexity.
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