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Transmit design for airborne MIMO radar based on prior information

机译：基于先验信息的机载MIMO雷达发射设计

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摘要

Knowledge-based (KB) transmit design problem is addressed for airborne Multiple-input multiple-output (MIMO) radar target detection in the non-homogeneous clutter zone. In airborne system, due to the fact that radar platform is moving, clutter has obvious time-varying property. It is vital to acquire and update clutter information in real time for airborne MIMO radar. However, there is a contradiction between transmit beampattern optimization for clutter perception and target detection. Thus, transmit optimization for both clutter perception and target detection could hardly be done simultaneously. To remedy these problems, a transmit design method for airborne MIMO radar is proposed based on the merit of MIMO radar in waveform diversity, in which the transmit array is divided into two subarrays, i.e. clutter perception subarray and target detection subarray. Then, the transmit design problem is decomposed into two subproblems, subarray partition and transmit waveform design. Based on convex optimization, subarray partition algorithm (SPA) and detection subarray beampattern design (DSBD) algorithm are presented. Numerical results show the efficiency of the proposed method.
机译：针对非均匀杂波区域中的机载多输入多输出（MIMO）雷达目标检测，解决了基于知识（KB）的传输设计问题。在机载系统中，由于雷达平台正在移动，因此杂波具有明显的时变特性。机载MIMO雷达实时获取和更新杂波信息至关重要。然而，用于杂波感知的发射波束图案优化与目标检测之间存在矛盾。因此，很难同时进行用于杂波感知和目标检测的发射优化。为了解决这些问题，提出了一种基于MIMO雷达在波形分集上的优点的机载MIMO雷达发射设计方法，该方法将发射阵列分为两个子阵列，即杂波感知子阵列和目标检测子阵列。然后，将发射设计问题分解为两个子问题：子阵列划分和发射波形设计。基于凸优化，提出了子阵列划分算法（SPA）和检测子阵列波束图案设计（DSBD）算法。数值结果表明了该方法的有效性。

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  • 来源
    《Signal processing》 |2016年第11期|521-530|共10页
  • 作者

    Junnan Shi; Bo Jiu; Hongwei Liu; Ming Fang; Junkun Yan;

  • 作者单位

    National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, PR China,Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, PR China;

    National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, PR China,Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, PR China;

    National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, PR China,Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, PR China;

    National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, PR China,Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, PR China;

    National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, PR China,Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, PR China;

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  • 正文语种 eng
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  • 关键词

    Airborne MIMO transmit beampattern design; Subarray partition; Signal-to-Clutter-plus-Noise Ratio (SCNR); Clutter suppression;

    机译：机载MIMO发射波束方向图设计;子数组分区;信噪比（SCNR）;杂波抑制;

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