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首页> 外文期刊>The Journal of Engineering >Modified reference window for two-dimensional CFAR in radar target detection
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Modified reference window for two-dimensional CFAR in radar target detection

机译：雷达目标检测中的二维CFAR修改的参考窗口

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摘要

The constant false alarm rate (CFAR) technology plays an important role in radar target detection. In cell averaging CFAR detectors, a reference window is usually adopted to estimate the average interference power in the range-Doppler matrix and to obtain the detection threshold, which should be set high enough to limit false alarm rate to a tolerably small rate. The conventional rectangular window, cross window, and column window are investigated in this study, which may suffer from a degraded detection performance due to involving some extraneous reference cells. Therefore, a modified reference window for two-dimensional CFAR is proposed to improve performance, depending on the distribution characteristics of radar targets in range and Doppler dimensions. The experimental results demonstrate its performance advantages on detection probability, CFAR loss, and figure of merit.
机译：恒定的误报率（CFAR）技术在雷达目标检测中起着重要作用。在电池平均CFAR检测器中，通常采用参考窗口来估计范围 - 多普勒矩阵中的平均干扰功率，并获得检测阈值，该检测阈值应该被设置为足够高，以将误报率限制为可容受的小速率。在该研究中研究了传统的矩形窗口，横向窗口和柱窗口，其可能由于涉及一些外来参考电池而遭受降低的检测性能。因此，提出了用于二维CFAR的修改参考窗口以提高性能，这取决于雷达目标的范围和多普勒尺寸的分布特性。实验结果表明其对检测概率，CFAR损失和优异图的性能优势。

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