项目名称: 空天基MIMO-SAR地面运动目标探测方法研究
项目编号: No.61201451
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 电子学与信息系统
项目作者: 王力宝
作者单位: 中国人民解放军空军预警学院
项目金额: 26万元
中文摘要: 针对新体制多输入多输出合成孔径雷达(MIMO-SAR)对地面运动目标探测方法提出的迫切需求,本项目利用MIMO-SAR多波形和多通道所获取的高系统自由度优势,系统深入地开展MIMO-SAR的运动目标信号建模、运动目标检测、运动目标测速及定位、运动目标成像和非均匀等效阵列误差补偿五方面研究。在运动目标信号建模中,提出MIMO-SAR不同工作模式下的各信号模型。在运动目标检测中,提出适用于MIMO-SAR的自适应杂波和噪声抑制方法,提高运动目标检测性能。在运动目标测速及定位中,提出稳健高效的测速、定位和解速度及定位模糊方法。在运动目标成像中,基于参数化模型提出运动目标的高精度成像方法。在非均匀等效阵列误差补偿中,提出有效的补偿方法。本项目的开展将为新体制MIMO-SAR地面运动目标信号处理关键技术奠定理论和算法基础,在理论价值和应用前景等方面具有重要意义和必要性。
中文关键词: MIMO-SAR;运动目标检测;参数估计;非均匀阵列;波形设计
英文摘要: Aiming at the urgent demands on ground moving target probing techniques for MIMO-SAR, some researches on moving target signal modelling, moving target detection, moving target velocity and position estimation, moving target imaging and equivalent non-uniform array error compensation will be given in this application project by using the high degree of freedom in MIMO-SAR obtained from multiple waveforms and multiple channels. For moving target signal modelling, we will propose corresponding signal model for different system mode. For moving target detection, we will propose adaptive clutter and noise suppression methods in MIMO-SAR to improve moving target detection performance. For moving target velocity and position estimation, we will propose effective parameter estimation and ambiguity resolved methods for real velocity and position parameters. For moving target imaging, we will propose high precision imaging methods based on the parametric model of moving target. For equivalent non-uniform array error, we will propose novel compensation methods in MIMO-SAR. These researches in this application project will lay a foundation on moving target signal processing theory and algorithms for new MIMO-SAR, and they have great theoretical significance and broad aspect of engineering applications.
英文关键词: Multiple input and multiple output SAR;moving target detection;parameter estimation;non-uniform array;waveform design