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本文论述非瑞利杂波中雷达检测概率和虚警概率的计算机蒙特卡洛模拟方法。用查表法快速产生模拟雷达目标信号和环境杂波的随机数序列,对这些随机数进行了统计检验;采用重要抽样技术导出雷达非参量秩值量化器的变形概率分布列和加权函数表达式,可模拟多种雷达非参量检测的虚警概率。文中给出详细的模拟框图和计算结果,列出广义符号法非参量检测器在对数正态杂波和韦伯杂波中对常值目标、SwerlingⅡ目标和对数正态目标的检测性能曲线。对这些模拟结果进行了对比讨论,得出一些重要结论。
This paper discusses the computer Monte Carlo simulation method of radar detection probability and false alarm probability in non-Rayleigh clutter. The method of look-up table is used to generate the random number sequence of simulated radar target signal and environmental clutter, and the statistical tests are performed on these random numbers. The important sampling technique is used to derive the deformation probability distribution matrix and weighted function expression of non-parametric rank quantizer , Can simulate a variety of radar non-parametric detection of false alarm probability. The detailed simulation block diagram and calculation results are given in the paper. The detection performance curves of the generalized symbolic nonparametric detector for normal targets, Swerling II targets and logarithmic normal targets in log normal clutter and Weber clutter are listed. The simulation results are compared and discussed, and some important conclusions are drawn.