| 引用本文: | 邹博,赖涛,梁甸农.基于步进频率正交信号的星载MIMO-GMTI雷达空时频处理研究.[J].国防科技大学学报,2010,32(4):72-77.[点击复制] |
| ZOU Bo,LAI Tao,LIANG Diannong.Study of Space time Frequency Processing for Spaceborne MIMO-GMTI Radar Based on Stepped Frequency Orthogonal Waveform[J].Journal of National University of Defense Technology,2010,32(4):72-77[点击复制] |
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| 基于步进频率正交信号的星载MIMO-GMTI雷达空时频处理研究 |
| 邹博, 赖涛, 梁甸农 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 多发多收(MIMO)体制雷达综合采用多通道、多频技术，为解决星载GMTI面临的探测慢速运动目标和消除盲速估计等问题提供了有效途径。MIMO雷达工作的基础是有效的波形设计。因此，在分析正交波形性能的基础上，结合GMTI应用需求，建立了星载MIMO雷达步进频率正交信号的基本参数确定准则，研究了步进频率MIMO雷达空时频联合自适应处理的基本原理，通过仿真验证了MIMO雷达在杂波抑制和GMTI性能上的优势。 |
| 关键词: MIMO雷达 地面运动目标指示 步进频率信号 空时频自适应处理 |
| DOI： |
| 投稿日期：2009-11-11 |
| 基金项目:国家自然科学基金资助项目(60902092，60901071)；国家部委资助项目(51321030101) |
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| Study of Space time Frequency Processing for Spaceborne MIMO-GMTI Radar Based on Stepped Frequency Orthogonal Waveform |
| ZOU Bo, LAI Tao, LIANG Diannong |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China)
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| Abstract: |
| Synthesizing the multiple-channel and multiple-frequency techniques, the multiple-input multiple-output (MIMO) radar can provide a feasible approach for solving the problems in spaceborne GMTI, such as slowly-moving target detection, and blind speed zones reduction. Effective orthogonal waveform design is crucial for MIMO radar implementation. Therefore, based on an analysis of the performance of orthogonal waveform, with the application of GMTI, the optimized basic parameter choice criteria for stepped frequency orthogonal waveform of spaceborne MIMO radar was proposed. Then, the basic principle of combined space, time and frequency adaptive processing was studied. Finally, simulation results were presented to demonstrate the superiority of MIMO radar in improving clutter suppression and GMTI performance. |
| Keywords: MIMO radar ground moving target indication (GMTI) stepped frequency signal space-time-frequency adaptive processing |
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