期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2013
卷号：52
期号：2
出版社：Journal of Theoretical and Applied
摘要：Wideband suppressing jamming is one of the main threats faced by Direct Sequence Spread Spectrum (DSSS) system. The identification of wideband jamming modes and estimation of its parameters provide beneficial reference for applying effective anti-jamming measures. Aiming at familiar wideband jamming modes faced by DSSS, five characteristic parameters are extracted. An automatic identification method of wideband jamming modes based on fractional Fourier transforms (FRFT) and layered decision-making algorithm is proposed. Through the simulation results and analysis, it can be found that the method can effectively identify non-jamming, narrow-band jamming, wideband noise jamming, wideband comb jamming and wideband sweep jamming. It has the advantages of high identification rate, simplicity, short sample time, fine stability and robustness, etc.
关键词：Jamming Identification; Direct Sequence Spread Spectrum; Layered Decision-Making
