中南大学学报（自然科学版）Issue(1)：108-113,6.DOI:10.11817/j.issn.1672-7207.2016.01.016
冲击噪声背景下独立信号与相干信号并存的测向自适应新方法
DOA estimation for uncorrelated and coherent signals in impulsive noise
摘要
Abstract
An effective self-adaptive method was proposed to eliminate the impulsive noise. Firstly, a threshold value was set up according to the amplitude feature of the array received data. Then, the amplitude of the array received data, whose amplitude is higher than the threshold value, was modified as the threshold value, and the residual noise was re-sampled to reconstruct the data according to the number of snapshot. Finally, the common second-order statistics method was utilized to estimate the directions of arrival (DOAs), and the DOAs of the uncorrelated and coherent signals were estimated separately. The results show that the proposed method is effective in the presence of strong impulsive noise and fewer snapshots.关键词
DOA估计/冲击噪声/独立信号/相干信号/二阶统计量/分数低阶统计量Key words
DOA estimation/impulsive noise/coexisted uncorrelated signals/coherent signals/second-order moment/fractional lower order statistics分类
信息技术与安全科学引用本文复制引用
刁鸣,刘磊,安春莲..冲击噪声背景下独立信号与相干信号并存的测向自适应新方法[J].中南大学学报（自然科学版）,2016,(1):108-113,6.基金项目
国家自然科学基金资助项目(61571149)；中央高校基本科研业务费专项基金资助项目(HEUCF1508)(Project(61571149) supported by the National Natural Science Foundation of China （61571149）
Project(HEUCF1508) supported by the Fundamental Research Funds for the Central Universities) （HEUCF1508）
