机构地区: 九江学院信息科学与技术学院
出 处: 《煤炭技术》 2010年第11期166-167,共2页
摘 要: 雷达系统中存在的独立SαS噪声和高斯噪声,可以用SαSG分布描述。在SαSG分布噪声条件下,传统的基于二阶统计量的AR谱估计方法失效,为此,提出了一种基于SαSG分布的FLOC(Franctional Lower OrderCovariation)-AR谱估计新方法。仿真结果表明,所提出的方法体现了明显的优势。 SαS noise and gauss noise in radar system were described by SαSG distribution.When working in SαSG noise environment,the performance of conventional AR Spectrum Estimate degenerate.New FLOC(Franctional Lower Order Covariation)-AR spectrum estimation method based on SαSG distribution noise were proposed.By estimating the sinusoidal signals that embedded in the SαSG noise,the method in this paper are robust.