...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Signal processing >On the Statistical Resolution Limit (SRL) for Time-Reversal based MIMO radar
【24h】

On the Statistical Resolution Limit (SRL) for Time-Reversal based MIMO radar

机译：基于时间反转的MIMO雷达的统计分辨率极限（SRL）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Highlights•At first, we derive the theoretical SRL expressions for the TR–MIMO and conventional MIMO radar systems.•Contrary to existing works, we take into account all the noise terms and particularly the required noise whitening process for the exact SRL formula computation.•Finally, we provide a performance comparison between the conventional and TR schemes which confirms the performance gain shown in the literature (e.g. Foroozan et al. ) when the noise term of the time reversed signal is neglected. However, our analysis highlights the fact that the TR scheme’s gain would be lost in the case where such assumption is not any more valid.AbstractIn the single-input multiple-output radar, the system transmits scaled (coherent) versions of a single waveform. The multiple-input multiple-output (MIMO) radar uses multiple antennas to simultaneously transmit several non-coherent waveforms and exploits multiple antennas to receive the reflected signals (echoes). This diversity in term of waveform coding allows to transmit orthogonal waveforms which enables the MIMO radar superiority in several fundamental aspects, including: improved parameter identifiability and estimation and much enhanced flexibility for transmit beam-pattern design. The context of this work is the co-located MIMO radar where the transmit and the receive arrays are close in space. In this paper, we provide a theoretical performance analysis to compare two configurations of MIMO radar: Conventional configuration and Time Reversal (TR) configuration in term of Statistical Resolution Limit (SRL). This study provides new insights on the performance gain of the TR scheme which is discussed and illustrated by appropriate simulation results depending on the receive noise level.
机译： 突出显示 • 首先，我们推导出TR–MIMO和常规MIMO雷达系统的理论SRL表达式。 • 与现有作品相反，我们将所有噪声项，尤其是精确的SRL公式计算所需的噪声白化过程。 • 最后，我们提供了常规方案与TR方案之间的性能比较hich确认了文献中显示的性能提升（例如Foroozan等。 ）当时间反转信号的噪声项被忽略时。但是，我们的分析强调了这样一个事实，即在这种假设不再有效的情况下，TR计划的收益将会损失。 摘要 在单输入多输出雷达中，系统发送缩放比例（相干）的单个波形版本。多输入多输出（MIMO）雷达使用多个天线来同时发送多个非相干波形，并利用多个天线来接收反射信号（回波）。波形编码方面的这种多样性允许发射正交波形，从而在几个基本方面实现了MIMO雷达的优越性，包括：改进的参数可识别性和估计，以及发射波束图案设计的更大灵活性。这项工作的背景是在同一地点的MIMO雷达，其中发射和接收阵列在空间上很近。在本文中，我们提供了一种理论性能分析，以比较统计分辨率极限（SRL）方面的MIMO雷达的两种配置：常规配置和时间反转（TR）配置。这项研究为TR方案的性能增益提供了新的见解，并根据接收噪声水平通过适当的仿真结果对此进行了讨论和说明。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号