首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Tracking evasive move-stop-move targets with a GMTI radar using a VS-IMM estimator
【24h】

Tracking evasive move-stop-move targets with a GMTI radar using a VS-IMM estimator

机译:使用VS-IMM估计器使用GMTI雷达跟踪逃避的移动停止目标

获取原文
获取原文并翻译 | 示例
           

摘要

We present the design of a variable structure interacting multiple model (VS-IMM) estimator for tracking evasive ground targets using ground moving target indicator (GMTI) reports obtained from an airborne sensor. In order to avoid detection by the GMTI sensor, the targets use a "move-stop-move" strategy, where a target deliberately stops or moves at a very low speed for some time before accelerating again. In this case, when the target's radial velocity (along the line of sight from the sensor) falls below a certain minimum detectable velocity, the target is not detected by the sensor. Under these conditions, the use of an estimator, which does not take care of this move-stop-move motion explicitly, will result in broken tracks. The tracker proposed here handles the evasive move-stop-move motion via the VS-IMM estimator, where the tracker mode set is augmented with a "stopped-target" model when the estimated speed of the target falls below a certain threshold. Using this additional stopped-target model, the target track is kept "alive" even in the absence of a measurement. A simulated scenario is used to illustrate the selection of design parameters and the operation of the tracker. Performance measures are presented to contrast the benefits of the VS-IMM estimator, which uses the stopped-target model, over a standard IMM estimator.
机译:我们提出了一种变结构相互作用多模型(VS-IMM)估计器的设计,该估计器使用从机载传感器获得的地面移动目标指示器(GMTI)报告来跟踪逃避的地面目标。为了避免被GMTI传感器检测到,目标使用“移动-停止-移动”策略,其中目标在再次加速之前故意停止或以非常低的速度移动一段时间。在这种情况下,当目标的径向速度(沿着来自传感器的视线)降至某个最小可检测速度以下时,传感器就不会检测到目标。在这种情况下,使用估计器(如果没有明确处理此移动停止运动)将导致轨迹中断。此处提出的跟踪器通过VS-IMM估计器处理逃避的移动,停止运动,其中,当目标的估计速度低于某个阈值时,跟踪器模式集会增加“停止目标”模型。使用此附加的停止目标模型,即使没有测量,目标轨道也可以保持“活动”状态。仿真场景用于说明设计参数的选择和跟踪器的操作。提出了性能指标,以对比使用停止目标模型的VS-IMM估算器与标准IMM估算器的优势。

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