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本文通过在计算机上实现一个二进量化序列法检测模型,讨论了相控阵雷达序列检测器在工程实现时的若干问题。对常用的二步序列法检测,用波束位置补照概率来衡量其检测效果。所建立的检测器工作曲线,定量地描述了波束位置补照概率、检测信噪比与检测门限(或量化门限)的关系,为合理使用雷达能量提供依据。文中比较了二进量化二步序列法与密度法的检测性能。合理选择检测门限(或量化门限),对于文中列举的几个检测器,能够仅以1.6dB的信噪比损失,使雷达的跟踪能力提高3.4dB以上。
In this paper, a binary quantitative sequence detection model is implemented on a computer, and some problems of the phased array radar detector when it is implemented are discussed. For the commonly used two-step sequence detection, the detection effect is measured by the beamforming probability. The established working curve of the detector quantitatively describes the probability of beamforming, and measures the relationship between the signal-to-noise ratio and the detection threshold (or quantization threshold) to provide the basis for the reasonable use of radar energy. The paper compares the detection performance of binary quantitative two-step sequence method and density method. Reasonable selection of detection threshold (or quantization threshold), for the several detectors listed in the text, can be only 1.6dB loss of signal to noise ratio, the radar tracking capability increased by 3.4dB or more.