南京理工大学学报（自然科学版）2011，Vol.35Issue(5)：677-680,4.
冲击噪声背景下归一化广义旁瓣相消器
Normalized-generalized Sidelobe Canceller in Impulsive Noise
摘要
Abstract
To solve the performance degradation of a beamformer in impulsive noises, a new normalized-generalized sidelobe canceller ( N-GSC) algorithm is presented for the heavy-tailed impulsive noises of arbitrary unknown statistics. The second-order statistical entity of input signal is made exist and finite by infinity-norm normalizing the input signal,and the input signal is filtered by wiener filter to improve the performance of the beamformer amid heavy-tailed impulsive noise of unknown statistics. The simulation results of four impulsive noises show that, compared with the GSC and the fractional lower order moments based GSC algorithm,the N-GSC algorithm does not need any prior information and estimation of the impulsive noise characteristic exponents, is easy for calculation and suitable for wider heavy-tailed impulsive noises,and can offer better interference-rejection.关键词
阵列信号处理/广义旁瓣相消器/分数低阶矩/冲击噪声Key words
array signal processing/generalized sidelobe cancellers fractional lower order moments/impulsive noises分类
信息技术与安全科学引用本文复制引用
李洪涛,顾陈,朱晓华,胡文..冲击噪声背景下归一化广义旁瓣相消器[J].南京理工大学学报（自然科学版）,2011,35(5):677-680,4.基金项目
航空科学基金(2009ZC.52038) （2009ZC.52038）
南京理工大学自主科研专项计划(2010ZYTS082) （2010ZYTS082）
