基于样本相关矩阵特征值分析的信号源解析

IF 0.8 4区地球科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Radiophysics and Quantum Electronics Pub Date : 2025-03-10 DOI:10.1007/s11141-025-10368-5

O. E. Kudryashova, E. S. Fitasov, A. D. Iliyasafov

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引用次数: 0

摘要

在低信噪比条件下，通过对接收系统本征噪声样本相关矩阵的特征值分析，分析了两个平面波前信号源的统计特性。对相同功率的信号和存在单一高功率干扰源的信号进行了分析。同时考虑了两种不同信号到达角源的分辨率特性。用数值方法研究了弱信号源存在时最大噪声特征值的分布。

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Resolution of Signal Sources Via Eigenvalue Analysis of the Sample Correlation Matrix

We analyze statistical properties of resolving two signal sources with plane wavefronts via eigenvalue analysis of the sample correlation matrix of the intrinsic noise of the receiving system for a low signal-to-noise ratio. The analysis was carried out both for the signals of the same power and in the presence of a single high-power interference source. The resolution properties of two sources with different signal arrival angles are also considered. The distribution of the maximum noise eigenvalue in the presence of a weak signal source is studied numerically.

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来源期刊

Radiophysics and Quantum Electronics ENGINEERING, ELECTRICAL & ELECTRONIC-PHYSICS, APPLIED

CiteScore

1.10

自引率

12.50%

发文量

审稿时长

6-12 weeks

期刊介绍： Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as: Radio astronomy; Plasma astrophysics; Ionospheric, atmospheric and oceanic physics; Radiowave propagation; Quantum radiophysics; Pphysics of oscillations and waves; Physics of plasmas; Statistical radiophysics; Electrodynamics; Vacuum and plasma electronics; Acoustics; Solid-state electronics. Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April. All articles are peer-reviewed.