基于感知的机载MIMO雷达空时联合设计

项目名称： 基于感知的机载MIMO雷达空时联合设计

项目编号： No.61201280

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： 李军

作者单位： 电子科技大学

项目金额： 23万元

中文摘要： 多输入多输出（MIMO）体制能有效改善机载雷达的杂波抑制、地面动目标检测、参数估计及射频隐身等多方面的性能，是机载雷达的一个重要发展方向。在机载雷达中引入感知技术，可显著提高机载雷达适应杂波及目标环境的能力，进一步提升系统性能。 本项目将感知理论与MIMO雷达技术相结合，应用于机载雷达背景，开展相关科学问题的研究。拟提出基于感知的机载MIMO雷达系统框架，建立基于环境信息和先验知识的机载MIMO雷达空时联合设计理论模型；提出有效的环境信息建模及参数估计方法；根据雷达的工作状态和任务需求等，提出优化设计准则和约束条件，对雷达发射阵列的子阵数、子阵划分原则、探测波形设计、波形相关性、空时处理等，进行联合优化设计，以使机载MIMO雷达工作在最佳状态，使杂波和干扰实现最大抑制，使目标信息得到最佳的获取。

中文关键词： 机载雷达；MIMO雷达；认知雷达；波形优化；空时设计

英文摘要： Multiple Input Multiple Output (MIMO) system is an important development direction of airborn radars, which can improve the performances of an airborn radar such as clutter rejection, ground moving target detection,parameter estimation, and RF stealth. Introducing the cognition technique into airborn radars can enhance its ability of adapting clutter and target environment, and further improve its system performances. The science problems of airborn radar combining cognitive radar theory and MIMO radar technique will be researched in this project. The system framework of the airborn MIMO radar based on cognition will be proposed, and the theory model of space-time combined design for airborn MIMO radar ground on environment information and apriori information will be established. We plan to put forward some effective methods for environment information modelling and parameter estimation, and propose some optimization design rules and constraint conditions based on the radar's state and mission requirements. The number of subarray of the transmitting array, principle of array partition, design of detecting waveform, relativity of waveforms, and space-time processing will be optimized to reject the clutter and interference furthest for the airborn MIMO radar to obtain the optimum target information.

英文关键词： airborn radar；MIMO radar；cognitive radar；Waveform optimization；space-time design