BAO Zhong-hua,LU Jian-bin,TIAN Yong-hua,et al.A Novel Radar TBD Detection Approach for Weak Marine Targets in Dense Clutter Based on Modified Hough Transform[J].ACTA ELECTRONICA SINICA,2022,50(07):1735-1743.
针对密集杂波背景中雷达微弱海面目标检测问题,提出一种基于修正Hough变换的检测前跟踪(Track Before Detect,TBD)新方法.在传统两级检测器的基础上增加点迹筛选环节,提出一种基于单帧观测数据的修正单帧Hough变换(Modified Single Hough Transform,MSHT)算法,在MSHT空间引入连续多帧共线和速度约束条件,实现对密集杂波点迹的有效抑制;针对海面多目标同时检测需要,改进传统批处理Hough变换算法,使观测空间原点自适应筛选后点迹数据,得到数据匹配Hough变换算法(Data-Matched Hough Transform,DMHT),以提升参数空间多目标分辨与检测能力.基于游程分布理论推导得到新检测器检测性能解析表达式.仿真和实测数据处理结果验证了本文方法的有效性,表明本文方法在密集杂波背景下具有良好检测性能.
Abstract
Focusing on radar dim targets detection in dense clutter environment
we propose a novel track-before-detect(TBD) method based on modified Hough transform. On the basis of traditional two-stage TBD detector framework
an additional plot censoring stage was designed and a single frame observation based modified Hough transform(MSHT) was presented. By inspecting the SMHT results over several consecutive scans with the constrains of multi-scan collinear and maximum expected velocity
most of the clutter-derived plots were effectively eliminated. To detect multi targets simultaneously
the traditional block-based Hough transform was improved to be a form named as data-matched Hough transform(DMHT)
which automatically adapts the original of the observation space according to the censored plots
and can significantly prompt the resolution and detection ability of multi targets in the parametric space. The analytic expression of the new detector's detection performance was given based on the random run distribution theory. Tests on both the simulated and measured data sets show the effectiveness and good detection performance of the proposed method
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A Fast Efficient Parallel Algorithm for Hough Transform
Analysis of Micro-Doppler Effect and Feature Extraction of Target in Inverse Synthetic Aperture Imaging Ladar
Feature-Point Detection and Geometry Calibration for an Autostereoscopic Tiled Display System Using Multiple Projectors
Analysis of Micro-Doppler Effect and Feature Extraction of Target in Frequency-Stepped Chirp Signal Radar (1.Telecommunication Engineering Institute,Air Force Engineering University,Xi’an,Shaanxi 710077,China; 2.Key Laboratory of Wave Scattering and Remote Sensing Information ,Fudan University, Shanghai 200433,China;3.Science Institute,Air Force Engineering University,Xi’an,Shaanxi 710051,China)
Related Author
Jian-bin LU
Yong-hua TIAN
Shu-sen TIAN
Zhong-hua BAO
QIN Ling
XU Xiao-hua
CHEN Hong-jian
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Related Institution
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National Key Lab of Novel Software TechNanjing Univ.NanjingJiangsu 210093China
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