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Journal of Central South University

, Volume 25, Issue 6, pp 1437–1446 | Cite as

RFD-Rao and RFD-Wald tests for distributed targets with range walking effect

  • Yu Wang (王宇)
  • Yun-he Cao (曹运合)
  • Hong-tao Su (苏洪涛)
  • Sheng-hua Wang (王胜华)
Article

Abstract

Two novel adaptive distributed target detectors, the range frequency domain-Rao (RFD-Rao) and range frequency domain-Wald (RFD-Wald) tests are proposed in this work. The application methods for these tests consider a partially homogeneous disturbance environment and a target range walking effect in a coherent processing interval (CPI). The asymptotic performance of the detectors is analyzed, and the constant false alarm rate (CFAR) properties with respect to the clutter covariance matrix and power level are shown. The performances of the proposed adaptive detectors are assessed through Monte-Carlo simulations, and the results are presented to demonstrate the effectiveness of the proposed detection algorithms compared to those of similar existing detectors.

Key words

adaptive detection distributed target Rao test Wald test range walking 

具有距离走动效应的RFD-Rao 和RFD-Wald 分布式目标检测器

摘要

提出两种新型自适应分布式目标检测器:距离频域Rao(RFD-Rao)和距离频域Wald(RFD-Wald) 检测器。 该方法考虑相参处理间隔(CPI)内部分均匀干扰环境和目标距离走动效应的影响,分析检 测器的渐近性能,并给出不同杂波协方差矩阵和功率水平下的恒虚警率(CFAR)特性分析。将本文 所提出的自适应检测器的性能通过蒙特卡罗试验进行了验证,仿真结果证明所提出的检测算法与现有 的类似检测器相比的有效性。

关键词

自适应检测 分布式目标 Rao 检测器 Wald 检测器 距离走动 

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Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.National Laboratory of Radar Signal ProcessingXidian UniversityXi’anChina
  2. 2.Collaborative Innovation Center of Information Sensing and UnderstandingXidian UniversityXi’anChina

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