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中文摘要：
主要研究四种非参量恒虚警检测器在实测海杂波数据中对起伏目标的检测性能，给出了不同检测器的检测性能曲线并得到了有意义的结论。目前绝大多数雷达系统的恒虚警处理都是采用参量的方法，而非参量的方法由于其运算的复杂性导致其很难应用于实际的雷达系统。随着高速计算机在现代雷达系统中的应用，使得用非参量的方法实现雷达目标检测成为可能。文中采用x波段雷达实测海杂波数据作为背景杂波，雷达目标采用Swerling起伏目标模型。
英文摘要：
This article mainly researches the performance of four kinds of nonparametric CFAR detectors to the fluctuated targets in sea clutter and obtains the performance curves of the different detectors and the meaningful results. At present, most radar systems maintain CFAR （constant false alarm rate） operation by parametric methods. It is always difficult to apply nonparametric methods to real radar systems due to their operating complexity. Along with the application of super computer in modern radar systems, it is possible to accomplish radar target detection with nonparametric methods. In this paper, real sea clutter data of X-band radar is used as the background clutter, and Swerling target model is used for the radar targets.
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