公开(公告)号：US09651657B2

公开(公告)日：2017-05-16

申请号：US14390964

申请日：2013-03-19

Applicant: SELEX ES LTD

Inventor： Robert Longmuir Sinclair

IPC: G01S7/41 ,  G01S13/42

CPC classification number: G01S7/414 ,  G01S13/426

Abstract: A radar surveillance system is described in which the radar beam re-visits each area of interest after a short period of time, by electronically reconfiguring a scanned beam to an offset position for an interleaved sub-dwell, within a scan period. This ‘look-back’ capability, where the area under test is re-visited after approximately 1 second, allows the natural de-correlation of sea clutter to take place between the initial and look-back samples of the surveillance area. The re-visit time can be adjusted to best exploit the de-correlation characteristics of the sea clutter return.

公开(公告)号：US20150061916A1

公开(公告)日：2015-03-05

申请号：US14390964

申请日：2013-03-19

Applicant: SELEX ES LTD

Inventor： Robert Longmuir Sinclair

IPC: G01S7/41 ,  G01S13/42

CPC classification number: G01S7/414 ,  G01S13/426

Abstract: A radar surveillance system is described in which the radar beam re-visits each area of interest after a short period of time, by electronically reconfiguring a scanned beam to an offset position for an interleaved sub-dwell, within a scan period. This ‘look-back’ capability, where the area under test is re-visited after approximately 1 second, allows the natural de-correlation of sea clutter to take place between the initial and look-back samples of the surveillance area. The re-visit time can be adjusted to best exploit the de-correlation characteristics of the sea clutter return.

Abstract translation: 描述了一种雷达监视系统，其中雷达波束在短时间内通过在扫描周期内将扫描波束电子重新配置到偏移位置进行交错子驻留，从而重新访问每个感兴趣的区域。 大约1秒钟后再次访问被测区域的这种“回溯”能力允许在监视区域的初始和后视样本之间发生海杂波的自然去相关。 可以调整重新访问时间，以最好地利用海杂波回归的去相关特征。