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A-scan ISAR target recognition system and method

机译:A扫描ISAR目标识别系统和方法

摘要

A target recognition system and method wherein only target amplitude data, i.e., coherent A-scan data, is interrogated at each of a plurality of range resolution cells along the radar line of sight path for target recognition. Target aspect angle is ignored within the angular segmentation of the feature library without degrading classification performance. Observed signature characteristics are collected at various aspect angles and through unknown roll, pitch and yaw motions of each anticipated target and provided to a neural network as training sets. The neural network forms feature vectors for each target class which are useful for valid classification comparisons in all sea states, especially in calm and littoral waters. These feature vectors are useful for valid classification comparisons over at least 30 degrees of target aspect angle.
机译:一种目标识别系统和方法,其中在沿着目标视线的雷达视线的多个测距分辨率单元中,仅询问目标幅度数据,即相干A扫描数据,以进行目标识别。在特征库的角度分割中,目标纵横比将被忽略,而不会降低分类性能。观察到的签名特征以各种纵横比并通过每个预期目标的未知侧倾,俯仰和偏航运动收集,并作为训练集提供给神经网络。神经网络为每个目标类别形成特征向量,这些特征向量可用于在所有海况下进行有效的分类比较,尤其是在平静和沿海水域中。这些特征向量可用于在至少30度的目标纵横比上进行有效的分类比较。

著录项

  • 公开/公告号US6437728B1

    专利类型

  • 公开/公告日2002-08-20

    原文格式PDF

  • 申请/专利权人 LOCKHEED MARTIN CORPORATION;

    申请/专利号US20010985451

  • 发明设计人 DENNIS W. RICHARDSON;PATRICK S. RYAN;

    申请日2001-11-02

  • 分类号G01S74/10;G01S139/00;

  • 国家 US

  • 入库时间 2022-08-22 00:49:09

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