Sensing wireless communications in television frequency bands
作者： Stephen J. Shellhammer , Ahmed K. Sadek , Wenyi Zhang
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摘要: In general, techniques are described for sensing wireless communications in television frequency bands, which may be implemented by a device comprising unit, power spectral density (PSD) estimation filter candidate selection an analysis unit and decision unit. The senses signal the frequencies bands. PSD calculates estimate of sensed signal. filters estimated PSD. analyzes filtered to identify representative potentially use frequency. computes test statistic compares threshold whether is actively communication devices.
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