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基于四阶累积量的近场源三维参数联合估计 被引量:4

Jointly Estimating 3-D Parameters of Near-Field Sources Based on Fourth-Order Cumulant
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摘要 针对近场窄带信源仰角、方向角和距离三维参数的估计问题,提出了一种新的近场源三维参数的联合估计方法。该方法利用特征值及相应特征向量和四阶累积量估计信号参数,不需要进行谱峰搜索,只需一维参数匹配,计算量适中,并且适用于加性高斯噪声环境。仿真实验证明,当信噪比为0时,该方法仍能够正确估计信源的参数。 A new method is presented aiming at jointly estimating 3-D range) of near-field narrowband sources, which uses eigenvalues together parameters (elevation, bearing and with the corresponding eigenvectors and four-order cumulant. The method does not need spectral peak searching, needs only simple 1-D parameter pairing, the computer burden is moderate, and it can be applied to additive Guassian noise environments. The computer simulations show that the parameters of sources can be estimated correctly even when the SNR ( Signal- to-Noise Ratio) is 0.
出处 《吉林大学学报(信息科学版)》 CAS 2006年第3期225-229,共5页 Journal of Jilin University(Information Science Edition)
基金 国家自然科学基金资助项目(60272065)
关键词 阵列信号处理 四阶累积量 仰角估计 方向角估计 距离估计 array signal processing four-order cumulant elevation estimate bearing estimate range estimate
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参考文献13

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  • 1王波,王树勋,韩啸.估计近场源三维参数的新方法[J].吉林大学学报(工学版),2004,34(4):611-616. 被引量:2
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