Random frequency and pulse repetition interval (PRI) agile (RFPA) signals bring excellent performance of electronic counter-countermeasures to radar systems and have been received considerable attention in recent years. However, the research on their ambiguity function (AF) is not comprehensive. In this article, the analytical expressions of the AF expectation and variance are given. According to the expressions, the direct relationships between the key metrics of the AF and the waveform parameters of RFPA signals are specified. The results in this article are verified by Monte Carlo simulations and provide some insights into RFPA waveform design.

中文翻译：

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随机频率和 PRI 捷变信号的模糊函数分析


随机频率和脉冲重复间隔（PRI）捷变（RFPA）信号为雷达系统带来了电子对抗的优异性能，近年来受到了广泛关注。然而，对其模糊函数（AF）的研究并不全面。本文给出了AF期望和方差的解析表达式。根据表达式，明确了AF关键指标与RFPA信号波形参数之间的直接关系。本文中的结果通过蒙特卡罗模拟进行了验证，并为 RFPA 波形设计提供了一些见解。