| 引用本文: | 赵宜楠,亓玉佩,赵占锋,周志权.分布式MIMO雷达的低截获特性分析[J].哈尔滨工业大学学报,2014,46(1):59.DOI:10.11918/j.issn.0367-6234.2014.01.011 |
| ZHAO Yinan,QI Yupei,ZHAO Zhanfeng,ZHOU Zhiquan.Analysis of LPI performance for distributed MIMO radar systems[J].Journal of Harbin Institute of Technology,2014,46(1):59.DOI:10.11918/j.issn.0367-6234.2014.01.011 |
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| 摘要: |
| 针对距离因子不适用于分析组网雷达低截获特性的问题,提出了能够定量衡量双基地雷达低截获特性的参数,并将其推广到组网雷达的情况．通过绘制参数的等值线图对分布式MIMO雷达的低截获特性进行了分析,给出了在不同空间分布下的MIMO雷达系统的“静寂”探测范围．仿真结果表明,相对于单基地雷达,分布式MIMO雷达系统的低截获特性不仅与雷达参数有关,还与系统中发射机与接收机的空间分布有关．分析表明,提高空间分集增益是实现低截获MIMO雷达的关键． |
| 关键词: 雷达 分布式MIMO 低截获概率 探测性能 空间分集 |
| DOI：10.11918/j.issn.0367-6234.2014.01.011 |
| 分类号: |
| 基金项目:国家自然科学基金资助项目(61371181). |
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| Analysis of LPI performance for distributed MIMO radar systems |
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ZHAO Yinan, QI Yupei, ZHAO Zhanfeng, ZHOU Zhiquan
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(School of Information and Electrical Engineering, Harbin Institute of Technology at Weihai, 264209 Weihai, Shandong, China)
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| Abstract: |
| In view of the limitation of the range factor on analyzing low probability of intercept (LPI) performance of MIMO radar systems, a performance parameter is derived and applied for quantifying the LPI performance of distributed MIMO radar systems. A series of contour charts have been given with different values of geometrical parameter. By plotting and analyzing these charts, the LPI performance can be obtained intuitively. Simulation results show that LPI performance of distributed MIMO radar systems depends on both radar parameter and system geometry. It is shown that the spatial diversity gain plays an important role in designing a distributed MIMO radar system with robust LPI performance. |
| Key words: radar distributed MIMO LPI detection performance spatial diversity |
