现代雷达2018，Vol.40Issue(2)：49-52,4.DOI:10.16592/j.cnki.1004-7859.2018.02.010
基于改进的Cabor原子结构的快速稀疏分解
Fast Sparse Decomposition Based on the Improving Structrure of Gabor
摘要
Abstract
Based on the improving structure of Gabor,a fast sparse decomposition algorithm is presented in this paper.According to the characteristic of Gabor,the phase of Gabor atom is varied with the variations of shift factor and frequency factor by theoretical derivation,and the range of the variations includes the variation of phase factor in Gabor atom.Therefore the phase factor is not need to be used during sparse decomposition,then the computation complexity is decreased,and sparse decomposition is quickened.Simulation results show that the computational efficiency of the proposed algorithm is about 11.7 times as high as that of using Gabor atoms that its phase factor is not gotten rid of,and the algorithm has not the defect of certain randomness from intelligent computation.关键词
稀疏分解/Gabor原子/快速算法/匹配追踪/过完备字典Key words
sparse decomposition/Gabor atom/fast algorithm/matching pursuit/over-complete dictionary分类
信息技术与安全科学引用本文复制引用
欧国建,邓剑勋,刘松..基于改进的Cabor原子结构的快速稀疏分解[J].现代雷达,2018,40(2):49-52,4.基金项目
重庆市教委科学技术研究项目(KJ1602909,KJ1503004) （KJ1602909,KJ1503004）
国家自然科学基金资助项目(61371164) （61371164）
重庆电子工程职业学院智能机器人技术研究中心资助课题(XJPT201705) （XJPT201705）
