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虚拟子阵平滑算法 被引量：1

Virtual Subarrays Smoothing Algorithm
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摘要 主动阵列发射正交信号可以极大地扩展阵列的虚拟孔径,阵列的自由度成几何增长。该文利用主动阵列发射同频带时域正交PCM信号构造的虚拟子阵,提出了一种虚拟子阵平滑(VSS)算法,可解决不同目标回波信号相干的问题。该算法避免了接收阵列物理孔径的损失,当接收阵列具有M个阵元时,最大可分辨的相干数目为M?1。仿真实验表明VSS算法的有效性,而且该算法只需要较少的阵元发射信号。 The active arrays can extend the virtual aperture greatly by transmitting orthogonal signals, and degrees of freedom are increased exponentially. In this paper, By transmitting orthogonal signals , virtual subarrays are designed, and the Virtual Subarrays Smoothing（VSS） algorithm is proposed for the coherent case. Virtual subarrays with M identical sensors avoid the reduction of the array effective aperture, and make this approach estimate M - 1 coherent returns at most. Simulation results show that the VSS algorithm is effective and need only a little sensors transmitting signals.
作者 许红波 王怀军 黄春琳 粟毅
机构地区 国防科技大学电子科学与工程学院
出处 《电子与信息学报》 EI CSCD 北大核心 2009年第6期1367-1370,共4页 Journal of Electronics & Information Technology
基金 国家自然科学基金(60602022)资助课题
关键词 信号处理 主动阵列 正交信号 虚拟子阵 波达方向 Signal processing Active arrays Orthogonal signals Virtual subarrays Direction -of-arrival
分类号 TN911.7 [电子电信—通信与信息系统]
  • 相关文献

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共引文献54

同被引文献11

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引证文献1

电子与信息学报
2009年 第6期

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