| 摘要: |
| 在复杂电磁环境中，干扰机可以通过数字射频存储技术产生多种高相干性的转发干扰，对雷达探测能力造成严重影响。针对传统波形设计方法大多只能对抗某一特定类型干扰的问题，本文提出了一种基于完全互补码的抗间歇采样转发和全脉冲转发干扰波形设计方法。首先，将完全互补码分为若干份，以频域正交的方式编入脉冲串波形；然后，基于分段脉冲压缩方式设计非匹配滤波器，同时抑制间歇采样转发干扰和全脉冲转发干扰。仿真实验验证了本文设计的完全互补码波形及其接收滤波器的有效性和先进性。 |
| 关键词: 间歇采样转发干扰 全脉冲采样转发干扰 完全互补码 波形设计 |
| DOI： |
| 分类号:TN974 |
| 基金项目:国家自然科学(61871384),湖南省科技创新计划项目(2022RC1092),湖南省杰出青年科学(2024JJ2066),国防科技大学自主创新科学(22-ZZCX-043) |
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| Joint Design of Complete Complementary Code Waveform and Receiving Filters Against Sampling Repeater Jamming |
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| Abstract: |
| In the complex electromagnetic environment, jammers can produce a variety of repeater jamming with high coherence through digital radio frequency storage technology, which causes serious impact on the detection ability of radar. In order to solve the problem that most of the traditional waveform design methods can only resist a specific type of interference, this paper proposes a waveform design method based on complete complementary code to suppress interrupted sampling repeater jamming and full-pulse sampling repeater jamming. First, the complete complementary code is divided into several parts and encoded into the pulse train waveform in the quadrature of frequency domain. Then, a non-matched filter is designed to suppress full-pulse sampling repeater jamming and interrupted sampling repeater jamming based on segmental pulse compression processing method. Simulation experiments verify the effectiveness and advancement of the waveform and the receiving filter design. |
| Key words: interrupted sampling repeater jamming full-pulse sampling repeater jamming complete complementary code waveform design |