现代电子技术2012，Vol.35Issue(9)：62-64,72,4.
快变信道下基于数据平滑的DVB-T信号频谱感知
Spectrum sensing of DVB-T signals based on data smoothing under fast varying channels
摘要
Abstract
In order to detect television white space CTVWS) under fast varying channel and low SNR, and take account the influence of noise on the signals, the received signals before correlation operation were averaged in order to improve the performance of the detector. The results show that the performance of the data smoothing algorithm is higher than the time-domain symbol cross- correlation algorithm by about 8dB and higher than the time-domain symbol auto-correlation algorithm by about 13 dB.关键词
认知无线电/DVB-T/电视空白/数据平滑Key words
cognitive radio/ DVB-T/ TVWS/ data smoothing分类
信息技术与安全科学引用本文复制引用
吴玲玲..快变信道下基于数据平滑的DVB-T信号频谱感知[J].现代电子技术,2012,35(9):62-64,72,4.
