深圳大学学报（理工版）2016，Vol.33Issue(6)：571-577,7.DOI:10.3724/SP.J.1249.2016.06571
色噪声下的延时二阶预处理MUSIC算法
Delay second order preprocessing MUSIC algorithm in presence of colored noise
摘要
Abstract
In order to avoid the effect of colored noise in multiple signal classification(MUSIC) algorithm, we propose a second order preprocessing method with delay correlation function.We eliminate colored noise by choosing a moving average(MA) model with L orders and constructing a delay correlated function that equals zero when its order is more than L.We construct a new weighted spectrum function based on the robust estimation performance of signal subspace in order to improve the resolving probability.The proposed algorithm improves estimation performance without loss of array aperture and complex computation.Hence, it has better application value in real direction of arrival(DOA) estimation with colored noise.Simulation results show that the proposed algorithm can eliminate colored noise effectively, and it has a better estimation performance without additional computation under the same estimation conditions.关键词
雷达工程/阵列信号处理/波达方向估计/色噪声/滑动平均模型/延时相关Key words
radar engineering/array signal processing/direction of arrival estimation/color noise/moving average model/delay correlation分类
信息技术与安全科学引用本文复制引用
初萍,张金凤..色噪声下的延时二阶预处理MUSIC算法[J].深圳大学学报（理工版）,2016,33(6):571-577,7.基金项目
National Natural Science Foundation of China(61501301) （61501301）
Scientific and Technology Projects of Guangdong Province(2013B021500017) （2013B021500017）
国家自然科学基金资助项目(61501301) （61501301）
广东省科技计划资助项目(2013B021500017) （2013B021500017）
