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《Acta Electronica Sinica》 2016-10
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Adaptive Interference Cancellation for L-DACS1 by the Usage of High Order Statistics

ZENG Xiao-ping;HE Yuan;JIAN Xin;HUANG Jie;LI Meng-ru;College of Communication Engineering,Chongqing University;  
To mitigate DME pulse interference over L-DACS1 and overcome the shortage of conventional solutions in time,frequency or second-order statistics domain,an innovative adaptive interference cancellation scheme by the usage of high-order statistics is introduced,namely CE-LMS. CE-LMS models the coexistence of L-DACS1 signal and DME interference as a deterministic signal plus colored Gaussian noises,and employs a cost function based on the three-order cumulant statistics and a variable step adjustment mechanism based on logarithmic function. All this together allowCE-LMS to eliminate the pulse-like DME interference from L-DACS1. Numerical results showthat CE-LMS algorithm can achieve a better cancellation ratio and lower bit error rate with a increase in computational complexity,which may help to the deployment of L-DACS1.
【Fund】: 国家自然科学基金重大研究计划(No.91438104);面上项目(No.61571069);青年项目(No.61501065);; 中央高校基本科研业务费资助项目(No.106112015CDJXY160002);; 重庆市研究生科研创新项目(No.CYS14005)
【CateGory Index】: TN713
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