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相关概念视频

Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

654
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
654

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相关实验视频

Updated: Jan 10, 2026

Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
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基于分布式MIMO雷达的距离-角度-合匹配的近场目标检测.

Quanrun Cheng1, Yuhong Zhang2, Cao Zeng1

  • 1National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China.

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|November 27, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了分布式MIMO雷达系统的新近场探测框架. 拟议的范围-角度-合匹配方法准确地检测近场条件下的目标,克服传统远场方法的局限性.

关键词:
这是一个FD-LFM信号.我们的GPU是GPU的GPU分布的MIMO雷达可以使用.多维匹配方案的多维匹配方案在近场目标目标的近场目标.

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科学领域:

  • 雷达系统工程 雷达系统工程
  • 信号处理 信号处理
  • 电磁学 电磁学 电磁学 电磁学

背景情况:

  • 分布式MIMO雷达系统中的传统远场探测方法对于近场条件是不够的.
  • 在近场场景中波面曲率会导致目标能量损失和不准确的参数估计.

研究的目的:

  • 为分布式MIMO雷达开发一个强大的近场目标检测框架.
  • 解决现有方法在处理近场复杂性的局限性.

主要方法:

  • 设计频率划分-线性频率调制 (FD-LFM) 信号,以提高直角性和多普勒容忍度.
  • 开发一个基于3D网格的回声模型,用于距离近距离目标的距离-亚齐木斯-海拔域.
  • 通过多维匹配实现连贯脉冲集成,以实现精确的延迟对齐和回声积累.
  • 为实时近场处理提供GPU加速并行化方案的建议.

主要成果:

  • 在近场检测中有效补偿球形波传播效应.
  • 展示高分辨率近场目标检测能力.
  • 通过模拟和实验数据验证框架的有效性.

结论:

  • 拟议的距离-角度-合匹配框架显著提高了分布式MIMO雷达中的近场目标检测.
  • 该方法提供了准确的参数估计,并克服了与近场条件固有的能量损失问题.
  • 该框架可实现近场雷达应用的实时处理和高分辨率成像.