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Performances of order statistics CFAR

机译:订单统计CFAR的性能

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摘要

A previous analysis of order-statistics constant-false-alarm-rate (OS-CFAR) radar receiving a single pulse from a Rayleigh fluctuating target in a Rayleigh background is extended to a Rayleigh-plus-dominant target. The analysis includes effects of a multitarget environment. A detailed comparison of OS-CFAR, cell-averaging (CA) CFAR, and censored CA-CFAR is provided for a Rayleigh target in the presence of strongly interfering targets. The false-alarm analysis of OS-CFAR is extended to the more general case of a Weibull background. The deterioration of the CFAR property of OS as the shape factor, C, of a Weibull probability density function changes from Rayleigh (C=2) to a longer-tailed one (C>2) is evaluated. The analytic comparison between CA-CFAR and OS-CFAR is extended to an integration of pulses reflected from a Swerling II target. The OS-CFAR performance (with and without interfering targets) yields an integral equation that is solved numerically.
机译:先前从瑞利背景中的瑞利起伏目标接收到单个脉冲的阶数统计恒误警率(OS-CFAR)雷达的先前分析被扩展为瑞利加优势目标。分析包括多目标环境的影响。在存在强烈干扰目标的情况下,为瑞利目标提供了OS-CFAR,单元平均(CA)CFAR和受审查的CA-CFAR的详细比较。 OS-CFAR的错误警报分析已扩展到威布尔背景的更一般情况。评价了威布尔概率密度函数的形状因子C从瑞利(C = 2)变为长尾(C> 2)时OS的CFAR特性的恶化。 CA-CFAR和OS-CFAR之间的分析比较扩展到对Swerling II目标反射的脉冲进行积分。 OS-CFAR性能(带有和不带有干扰目标)产生了一个积分方程,可以通过数值求解。

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