雷达信号波形域射频隐身性能评估方法

发布时间：2018-07-01 14:08

本文选题：性能评估 + 射频隐身　；参考：《系统工程与电子技术》2017年10期

【摘要】：针对雷达信号射频隐身性能评估中对敌方截获设备的依赖性和评估方法通用性的问题,提出一种基于自身辐射信号特征的雷达信号波形射频隐身性能评估方法。该方法从射频辐射源自身辐射信号的结构出发,通过分析辐射源所辐射信号的周期、占空比,利用希尔伯特变换求出单一周期内脉内信号的瞬时频率、瞬时波形、瞬时相位,归一化脉内信号瞬时参数,从而给出波形域射频隐身指标的定量计算方法。对雷达信号的线性调频波形和相位编码波形进行了仿真对比,仿真结果证明此方法可准确反映出雷达信号波形域射频隐身性能。
[Abstract]:Aiming at the dependence of radar signal radio frequency stealth performance evaluation on enemy interception equipment and the universality of evaluation methods, a method for evaluating radar signal waveform radio frequency stealth performance based on its own radiation signal characteristics is proposed. This method starts from the structure of radio-frequency radiation source's own radiation signal, by analyzing the period and duty cycle of the radiating source's radiated signal, using Hilbert transform, the instantaneous frequency, instantaneous waveform, instantaneous phase of the signal in a single period are obtained. The instantaneous parameters of in-pulse signal are normalized, and the quantitative calculation method of RF stealth index in waveform domain is given. The linear frequency modulation waveform and phase coded waveform of radar signal are simulated and compared. The simulation results show that this method can accurately reflect the RF stealth performance of radar signal waveform domain.
【作者单位】：空军工程大学装备管理与安全工程学院;空军工程大学装备发展与运用研究中心;西安科技大学测绘科学与技术学院;
【基金】：国家自然科学基金(61502523) 陕西省电子信息系统综合集成重点实验室项目(201501A)资助课题
【分类号】：TN957.51

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