数据采集与处理2012，Vol.27Issue(4)：399-403,5.
脉冲噪声环境下宽带循环平稳信号DOA估计算法
DOA Estimation Algorithm of Wideband Cyclostationary Signals in Impulsive Noise Environment
摘要
Abstract
Since the conventional second-order cyclic statistics algorithms degenerate severely in the impulsive noise environment, the paper takes the α-stable distribution as the noise model and presents an algorithm of direction of arrival (DOA) estimation based on the fractional lower order cyclic correlation. The algorithm transforms the DOA estimation of the wideband cyclostationary signals into the narrowband problem with the 'center frequency' e by using the phase shift characteristics of the fractional lower order cyclic correlation. Simulation results indicate that the new algorithm is superior to the classicalspectral correlation signal subspace fitting (SC-SSF) algorithm.关键词
宽带循环平稳信号/α稳定分布/分数低阶循环相关/波达方向(DOA)估计Key words
wideband cyclostationary signals/ α-stable distribution/ fractional lower order cyclic correlation/ DOA estimation分类
信息技术与安全科学引用本文复制引用
尤国红,邱天爽,兰天..脉冲噪声环境下宽带循环平稳信号DOA估计算法[J].数据采集与处理,2012,27(4):399-403,5.基金项目
国家自然科学基金(60872122,60940023)资助项目. （60872122,60940023）
