高斯噪声下非线性单通道信号检测系统的改进指标

I. V. Tsevukh, A. A. Sakovich, V. I. Tsevukh
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引用次数: 0

摘要

在相干脉冲雷达系统中,不相关和相关干扰叠加混合背景下的运动目标信号检测是相关且相当复杂的问题之一。来自静止或缓慢移动物体的干扰反射形式的相关干扰严重破坏了雷达系统的正常运行,这可能导致错过目标。本文比较分析了两种非线性单通道系统在不相关和相关高斯噪声的加性混合下检测有用信号的潜在效率。为了解决从非线性结构的角度分析探测器质量的问题,提出了一种改进指标,即非线性系统的输出信号/干扰比与输入信号/干扰比,对目标的所有可能径向速度取平均值。文中给出了对各种频谱相关干扰参数的算法潜在有效性的数值对比分析结果。结果表明,本文提出的算法的潜在效率高于基于改进指标和本文选择的不相关和相关干涉的加性混合参数实现著名的Hotelling统计的算法的效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Index of improvement of nonlinear single-channel signal detection systems under Gaussian noise
Detection of signals of moving targets against the background of an additive mixture of uncorrelated and correlated interference is one of the relevant and rather complex tasks solved in coherent-pulse radar systems. Correlated interference in the form of disturbing reflections from stationary or slowly moving objects significantly disrupts the regular operation of radar systems, which can lead to missing the target. The article presents a comparative analysis of the potential efficiency of two non-linear single-channel systems for useful signal detection operating under an additive mixture of uncorrelated and correlated Gaussian noise. To solve the task of analyzing the quality of detectors from the class of nonlinear structures, an improvement index was proposed, which is the signal/interference ratio at the output of the nonlinear system to the signal/interference ratio at its input, averaged over all possible radial velocities of the target. Numerical results of a comparative analysis of the potential effectiveness of the considered algorithms for various spectral-correlation parameters of interference are given. It was established that the potential efficiency of the algorithm developed by the author is higher than the efficiency of the algorithm implementing the well-known Hotelling statistics based on the improvement index and the parameters of the additive mixture of uncorrelated and correlated interference selected in this work.
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