• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >Optimum Processing of Unequally Spaced Radar Pulse Trains for Clutter Rejection
【24h】

Optimum Processing of Unequally Spaced Radar Pulse Trains for Clutter Rejection

机译：杂波抑制不等距雷达脉冲序列的优化处理

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A train of radar pulses from one resolution cell can be processed coherently to reject echoes from external clutter and detect targets moving radially with respect to the clutter. Optimum methods of signal processing are defined for systems in which the interpulse spacings are multiply staggered to avoid target blind speeds. Likelihood ratio tests are developed for systems in which the target Doppler frequency is known a priori and for systems employing a bank of filters to cover the target Doppler band. To implement such tests, the N pulses in the train are added with complex weights and the amplitude of the sum compared with a detection threshold. The set of weights which maximizes the average signal-to-clutter ratio is also computed for a single-filter system with unknown target Doppler frequency. When the clutter autocorrelation function is exponential, the clutter covariance matrix can be inverted analytically. This latter result is useful for comparing different interpulse-spacing codes for a particular system application.
机译：可以对来自一个分辨率单元的一系列雷达脉冲进行相干处理，以拒绝来自外部杂波的回波并检测相对于杂波径向移动的目标。针对系统设计了最佳的信号处理方法，在这些系统中，脉冲间隔被交错排列以避免目标盲速。针对先验已知目标多普勒频率的系统以及采用一堆滤波器覆盖目标多普勒频带的系统，开发了似然比测试。为了执行这样的测试，将序列中的N个脉冲添加复杂的权重，并将总和的振幅与检测阈值进行比较。对于目标多普勒频率未知的单滤波器系统，还计算了使平均信号杂波比最大的一组权重。当杂波自相关函数是指数函数时，杂波协方差矩阵可以解析地求逆。后一个结果对于比较特定系统应用的不同脉冲间隔代码很有用。

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