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相关乘性和加性噪声背景下的二维谐波恢复
引用本文:窦慧晶,王树勋,汪飞.相关乘性和加性噪声背景下的二维谐波恢复[J].吉林大学学报(信息科学版),2005,23(1):1-5.
作者姓名:窦慧晶  王树勋  汪飞
作者单位:吉林大学,通信工程学院,长春,130025
基金项目:国家自然科学基金 , 高等学校博士学科点专项科研项目
摘    要:针对乘性噪声和加性噪声均为零均值,且乘性噪声之间相关,乘性噪声和加性噪声之间也相关,这种复杂噪声背景下的二维谐波恢复问题,利用二维循环统计量方法进行了研究.提出了二维噪声互可混的概念,用来体现多个二维噪声之间的相关关系;定义了特殊的二维四阶时间平均多矩谱来估计信号频率.仿真实验证明了算法的有效性.

关 键 词:二维谐波恢复  互可混  二维循环均值  时间平均多矩谱  相关  乘性噪声  噪声背景  二维谐波恢复  Additive  Noise  有效性  算法  验证  仿真  信号频率  估计  四阶时间平均多矩谱  关系  互可混  研究  计量方法  循环  利用  问题  均值
文章编号:1671-5896(2005)01-0001-05
修稿时间:2004年4月26日

Two-Dimensional Harmonic Retrieval in Correlative Multiplicative and Additive Noise
DOU Hui-jing,WANG Shu-xun,WANG Fei.Two-Dimensional Harmonic Retrieval in Correlative Multiplicative and Additive Noise[J].Journal of Jilin University:Information Sci Ed,2005,23(1):1-5.
Authors:DOU Hui-jing  WANG Shu-xun  WANG Fei
Abstract:The problem concerned here is two-dimensional (2-D) harmonic retrieval in correlative multiplicative and additive noise, which not only 2-D multiplicative and additive noise, but also multiplicative and multiplicative noise is correlative. We propose a 2-D cyclic statistic-based approach to this problem. First, we define the cross-mixing of 2-D stochastic process, which can depict the correlative relationship of the multiplicative and additive noise. Second, a special 2-D the fourth-order time-average moment spectrum is defined to estimate frequency in zero mean multiplicative and additive noise. This method needs not to constrain the distribution and color of noise. The effectiveness of our method is demonstrated through some simulation examples.
Keywords:2-D harmonic retrieval  cross-mixing  2-D time-average moment spectrum  multiplicative noise
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