-
公开(公告)号：US08217827B2
公开(公告)日：2012-07-10
申请号：US12678895
申请日：2008-10-13
IPC分类号： G01S13/00
CPC分类号： G01S13/003 , G01S7/414
摘要： A method and system for locating objects in a region having a high degree of multipath susceptibility comprises a plurality of transducers, each being a transmit or receive antenna, and being arranged about the region in known locations, to form a bistatic or multistatic radar, with some embodiments being MIMO systems. Signals transmitted by the transmit antenna(s) are received at each receive antenna and processed to form a set of channel impulse responses, or power delay profiles, representative of the region at a given time. A second set is formed at a different time, and the difference between the two sets is calculated, the difference containing information on movement within the region. The difference may be processed to localize the moving object(s) by graphical means, e.g. by generating an x-y image representative of the region, and accumulating at each pixel appropriate values of the profile difference selected according to the propagation delay between a transmit-receive antenna pair via a region point represented by the pixel.
摘要翻译： 用于定位具有高度多路径磁化率的区域中的物体的方法和系统包括多个换能器，每个换能器是发射或接收天线，并且围绕已知位置的区域布置，以形成双基地或多状态雷达，具有 一些实施例是MIMO系统。 由发射天线发送的信号在每个接收天线处被接收并被处理以形成一组信道脉冲响应或功率延迟分布，其表示给定时间的区域。 在不同的时间形成第二组，并且计算两组之间的差异，该差包含该区域内的运动信息。 该差异可以被处理以通过图形方式来定位移动物体，例如， 通过生成表示该区域的x-y图像，并且在每个像素处累积根据由像素表示的区域点在发射 - 接收天线对之间的传播延迟所选择的轮廓差的适当值。
-
公开(公告)号：US08094060B2
公开(公告)日：2012-01-10
申请号：US10543583
申请日：2004-01-29
IPC分类号： G01S13/52
CPC分类号： G01S7/2926 , G01S13/5246 , G01S13/726
摘要： A method for processing returns from a sensor, such as a radar system, in order to identify targets is provided. The method uses a track before detect routine to integrate data from several scans in order to give better discrimination. In running the track before detect routine however a number of possible target motions are postulated and the data combined accounting for such motions. A result above a threshold may then be indicative to a target present and moving with the postulated velocity. The method gives more accurate target detection as the combined data at the correct target motion postulate is more consistent than transient noise and clutter. Once a target has been identified it is preferably removed from the data set in searching for additional targets.
摘要翻译： 提供了一种用于处理从诸如雷达系统的传感器返回的方法，以便识别目标。 该方法使用检测程序之前的轨迹来整合来自几个扫描的数据，以便更好地区分。 然而，在检测例程之前运行轨道，假设了许多可能的目标运动，并且数据组合考虑了这种运动。 然后，阈值以上的结果可以指示目标存在并且以假定的速度移动。 该方法提供更准确的目标检测，因为正确的目标运动假设的组合数据比瞬态噪声和杂波更一致。 一旦已经识别出目标，则优选在搜索附加目标时从数据集中去除目标。
-
公开(公告)号：US20100207804A1
公开(公告)日：2010-08-19
申请号：US12678895
申请日：2008-10-13
IPC分类号： G01S13/00
CPC分类号： G01S13/003 , G01S7/414
摘要： A method and system for locating objects in a region having a high degree of multipath susceptibility comprises a plurality of transducers, each being a transmit or receive antenna, and being arranged about the region in known locations, to form a bistatic or multistatic radar, with some embodiments being MIMO systems. Signals transmitted by the transmit antenna(s) are received at each receive antenna and processed to form a set of channel impulse responses, or power delay profiles, representative of the region at a given time. A second set is formed at a different time, and the difference between the two sets is calculated, the difference containing information on movement within the region. The difference may be processed to localise the moving object(s) by graphical means, e.g. by generating an x-y image representative of the region, and accumulating at each pixel appropriate values of the profile difference selected according to the propagation delay between a transmit-receive antenna pair via a region point represented by the pixel.
摘要翻译： 用于定位具有高度多路径磁化率的区域中的物体的方法和系统包括多个换能器，每个换能器是发射或接收天线，并且围绕已知位置的区域布置，以形成双基地或多状态雷达，具有 一些实施例是MIMO系统。 由发射天线发送的信号在每个接收天线处被接收并被处理以形成一组信道脉冲响应或功率延迟分布，其表示给定时间的区域。 在不同的时间形成第二组，并且计算两组之间的差异，该差包含该区域内的运动信息。 该差异可以被处理以通过图形方式来定位移动物体，例如， 通过生成表示该区域的x-y图像，并且在每个像素处累积根据由像素表示的区域点在发射 - 接收天线对之间的传播延迟所选择的轮廓差的适当值。
-
-
搜索结果
3 条记录 (耗时 0.012 秒)
