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应用多抽头谱估计和小波变换的宽带频谱感知方法
引用本文:朱永建.应用多抽头谱估计和小波变换的宽带频谱感知方法[J].舰船电子工程,2014(8):41-43.
作者姓名:朱永建
作者单位:海军驻苏州地区通信军事代表室;
摘    要:宽带频谱感知是认知无线电的一项关键技术.论文研究了应用多抽头谱估计和小波变换的宽带频谱感知方法,对该方法性能进行了仿真分析.结果表明,多抽头谱估计要优于周期图谱估计,应用多抽头谱估计和多尺度小波积能够准确找到主用户信号频率边界,从而得到频谱空穴.

关 键 词:认知无线电  频谱感知  小波变换  多抽头谱估计

Wideband Spectrum Sensing Using Multi-taper Spectral Estimation and Wavelet Transform
ZHU Yongjian.Wideband Spectrum Sensing Using Multi-taper Spectral Estimation and Wavelet Transform[J].Ship Electronic Engineering,2014(8):41-43.
Authors:ZHU Yongjian
Affiliation:ZHU Yongjian (Navy Representative Office of Communication in Suzhou, Suzhou 215101)
Abstract:Wideband spectrum sensing plays an important role in cognitive radio. A wideband spectrum sensing method using multi-taper spectral estimation and wavelet transform is studied in this paper. Simulations are done to evaluate the performance of this method. Results show that multi-taper spectral estimation performs better than periodgram method. Using multi-taper spectral estimation and multi scale wavelet product can find the subband edge of primary user correctly.
Keywords:cognitive radio  spectrum sensing  wavelet transform  multi-taper spectral estimation
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