| 引用本文: | 曲圣杰，高越，常城. 一种C波段雷达云雨气象干扰源检测方法[J]. 雷达科学与技术, 2021, 19(4): 435-439.[点击复制] |
| QU Shengjie, GAO Yue, CHANG Cheng. Jamming Detection Method for C Band Radar in Cloud and Rain Weather[J]. Radar Science and Technology, 2021, 19(4): 435-439.[点击复制] |
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| 摘要: |
| 相对于S波段，C波段雷达在保持较好穿透性的同时具有更窄的波束宽度，可以给出更高的测角精度和分辨率。但由于特定的波长特性，C波段雷达更易受气象影响。实际工程中发现云雨气象恶劣时，干扰源检测出现大量压制干扰虚警，从而错误地调度抗干扰功能，大幅占据系统资源。本文通过大量试验数据，分析云雨气象杂波与压制干扰在波位内不同俯仰方向以及波位间不同方位方向的差异，提出从波位内到波位间两级干扰源检测方法，该方法在保证真实干扰源正常检测的同时，极大地降低了云雨气象杂波导致的虚警，提高了C波段雷达在恶劣气象环境下的适用性。 |
| 关键词: C波段雷达 干扰源检测 云雨气象 压制干扰虚警 |
| DOI：DOI:10.3969/j.issn.1672-2337.2021.04.011 |
| 分类号:TN974 |
| 基金项目: |
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| Jamming Detection Method for C Band Radar in Cloud and Rain Weather |
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QU Shengjie, GAO Yue, CHANG Cheng
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The 38th Research Institute of China Electronics Technology Group Corporation, Hefei 230088, China
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| Abstract: |
| Comparing with S-band, C-band radar has a narrower beam width while maintaining better penetration, so higher angular accuracy and resolution can be given. But C-band radar is more susceptible to meteorological effects because of its specific wavelength characteristics. In actual engineering, false suppressive jamming alarms appear in jamming detection under bad cloud and rain weather condition. Then anti-jamming function is scheduled by error and large amount of system resources are occupied. The difference between cloud-rain weather echo and suppressive jamming is analyzed in this paper through test data and then a two-step jamming detection method is proposed. False alarms of cloud-rain weather echoes are reduced greatly while real jamming correctly is detected. The applicability of C-band radar in harsh meteorological environments is improved. |
| Key words: C-band radar jamming detection cloud-rain weather false suppressive jamming alarm |
