Method, apparatus, and computer program product for radar crossrange superresolution

    公开(公告)号:US20050179587A1

    公开(公告)日:2005-08-18

    申请号:US10781500

    申请日:2004-02-18

    IPC分类号: G01S13/06 G01S13/48

    摘要: Methods, apparatus, and computer program products are provided for improving the crossrange resolution of a radar device for more accurate determinations of angular position of a target. The radar device transmits and receives scanning signals at crossrange beam positions having a beamwidth, wherein the beam positions are separated by a step. The radar device scans a target to receive target data from at least three beam positions, typically consecutive beam positions, to determine a first beam position with a first target data value that is greater than a second target data value of a second beam position preceding the first beam position and greater than a third target data value of a third beam position following the first beam position. A target data relationship between the first, second, and third beam positions is determined to provide the angular position of the target relative to the first beam position.

    SYSTEM AND METHOD FOR RADAR DETECTION AND CALIBRATION
    2.
    发明申请
    SYSTEM AND METHOD FOR RADAR DETECTION AND CALIBRATION 失效
    雷达检测和校准的系统和方法

    公开(公告)号:US20050128136A1

    公开(公告)日:2005-06-16

    申请号:US10735566

    申请日:2003-12-12

    IPC分类号: G01S7/40

    CPC分类号: G01S7/4004

    摘要: A system and method for radar detection and calibration. By measuring the true range of a calibration target on entry to the radar's detection zone, the actual detection capability of the radar in current atmospheric conditions with the actual radar can be determined. The radar system is also adapted to determine a sensed position at a sensed time of a target in the radar's detection zone. A calibration target, preferably an unmanned air vehicle (UAV), includes a position device for determining the actual position of the calibration target. A calibration device communicates with the radar system and the calibration target and receives the sensed and actual positions of the calibration target. The calibration device calculates the error between the sensed position and the actual position and adjusts the radar system to minimize the error. The target may include a signal augmentation device to augment the radar cross-section of the target to replicate the radar cross-sections of targets of various types. In this manner the true detection range of the radar system can be determined for various types of targets under existing atmospheric conditions.

    摘要翻译: 一种用于雷达检测和校准的系统和方法。 通过测量进入雷达检测区域的校准目标的真实范围,可以确定雷达在当前大气条件下与实际雷达的实际检测能力。 雷达系统还适于确定在雷达检测区域中的目标的感测时间处的感测位置。 校准目标,优选无人驾驶飞行器(UAV)包括用于确定校准目标的实际位置的位置装置。 校准装置与雷达系统和校准目标通信,并接收校准目标的感测和实际位置。 校准装置计算感测位置和实际位置之间的误差,并调整雷达系统以最小化误差。 目标可以包括信号增强装置,以增加目标的雷达横截面以复制各种目标的雷达横截面。 以这种方式,可以在现有大气条件下为各种类型的目标确定雷达系统的真实检测范围。

    METHOD AND APPARATUS FOR THREE DIMENSIONAL TOMOGRAPHIC IMAGE RECONSTRUCTION OF OBJECTS
    3.
    发明申请
    METHOD AND APPARATUS FOR THREE DIMENSIONAL TOMOGRAPHIC IMAGE RECONSTRUCTION OF OBJECTS 有权
    三维三维图像重建对象的方法与装置

    公开(公告)号:US20090021423A1

    公开(公告)日:2009-01-22

    申请号:US11780134

    申请日:2007-07-19

    IPC分类号: G01S13/90

    CPC分类号: G01S7/003 G01S13/87 G01S13/89

    摘要: In accordance with an embodiment, a system includes a plurality of vehicles and a central node. The plurality of vehicles each have radar systems used to collect radar data about the target object. Each in the plurality of vehicles moves in a path to collect a portion of the radar data using a sampling map to coordinate collection of the radar data by the plurality of vehicles and communicates with every other vehicle to identify uncollected portions of the radar data. The central node is in communication with the plurality of vehicles, wherein the central node receives the radar data from the plurality of vehicles and creates a three dimensional image from the radar data received from the plurality of vehicles using a tomographic reconstruction process.

    摘要翻译: 根据实施例,系统包括多个车辆和中央节点。 多个车辆各具有用于收集关于目标物体的雷达数据的雷达系统。 多个车辆中的每一个在路径中移动以使用采样图收集雷达数据的一部分,以协调多个车辆的雷达数据的采集,并与每隔一个车辆通信以识别雷达数据的未收集部分。 所述中央节点与所述多个车辆通信,其中所述中央节点从所述多个车辆接收所述雷达数据,并且使用断层摄影重建处理从所述多个车辆接收到的雷达数据创建三维图像。

    Radar system and method for determining the height of an object
    4.
    发明申请
    Radar system and method for determining the height of an object 失效
    用于确定物体高度的雷达系统和方法

    公开(公告)号:US20060044177A1

    公开(公告)日:2006-03-02

    申请号:US10935009

    申请日:2004-09-01

    IPC分类号: G01S13/90

    摘要: System and method for determining the height of an object reflecting a real beam radar signal by receiving the reflected signal with a first and second vertically spaced antennas. Receivers provide two signals indicating the phase of the reflected signals received by the two antennas. A digital processor determines the phase difference between the two signals and calculates the object height.

    摘要翻译: 用于通过用第一和第二垂直间隔的天线接收反射信号来确定反映真实波束雷达信号的物体的高度的系统和方法。 接收器提供两个信号,指示由两个天线接收的反射信号的相位。 数字处理器确定两个信号之间的相位差并计算物体高度。

    System and method for target tracking and navigation to a target

    公开(公告)号:US20050033488A1

    公开(公告)日:2005-02-10

    申请号:US10638146

    申请日:2003-08-08

    申请人: Peter Wittenberg

    发明人: Peter Wittenberg

    CPC分类号: G01S7/412 G01S5/0284 G05D1/12

    摘要: A system, method and computer program product for performing automatic navigation of a first aircraft to a second aircraft is provided. The system includes a radar system, a processor, memory, and a flight control system. The radar system generates a one-dimensional radar profile of the second aircraft. The processor determines flight information of the second aircraft based on the generated one-dimensional radar profile and one-dimensional radar profiles stored in the memory. The flight control system automatically directs the first aircraft based on the determined flight information of the second aircraft. In one embodiment, the first aircraft is an unmanned airborne vehicle and the second aircraft is a tanker aircraft. In another embodiment, the radar system may include a high-range resolution radar.

    Method and apparatus for three dimensional tomographic image reconstruction of objects
    6.
    发明授权
    Method and apparatus for three dimensional tomographic image reconstruction of objects 有权
    三维断层图像重建对象的方法和装置

    公开(公告)号:US07642953B2

    公开(公告)日:2010-01-05

    申请号:US11780134

    申请日:2007-07-19

    IPC分类号: G01S13/89

    CPC分类号: G01S7/003 G01S13/87 G01S13/89

    摘要: In accordance with an embodiment, a system includes a plurality of vehicles and a central node. The plurality of vehicles each have radar systems used to collect radar data about the target object. Each in the plurality of vehicles moves in a path to collect a portion of the radar data using a sampling map to coordinate collection of the radar data by the plurality of vehicles and communicates with every other vehicle to identify uncollected portions of the radar data. The central node is in communication with the plurality of vehicles, wherein the central node receives the radar data from the plurality of vehicles and creates a three dimensional image from the radar data received from the plurality of vehicles using a tomographic reconstruction process.

    摘要翻译: 根据实施例,系统包括多个车辆和中央节点。 多个车辆各具有用于收集关于目标物体的雷达数据的雷达系统。 多个车辆中的每一个在路径中移动以使用采样图收集雷达数据的一部分,以协调多个车辆的雷达数据的采集,并与每隔一个车辆通信以识别雷达数据的未收集部分。 所述中央节点与所述多个车辆通信,其中所述中央节点从所述多个车辆接收所述雷达数据,并且使用断层摄影重建处理从所述多个车辆接收到的雷达数据创建三维图像。

    Radar system and method for determining the height of an object
    7.
    发明授权
    Radar system and method for determining the height of an object 失效
    用于确定物体高度的雷达系统和方法

    公开(公告)号:US07167126B2

    公开(公告)日:2007-01-23

    申请号:US10935009

    申请日:2004-09-01

    IPC分类号: G01S13/08 G01S13/94

    摘要: System and method for determining the height of an object reflecting a real beam radar signal by receiving the reflected signal with a first and second vertically spaced antennas. Receivers provide two signals indicating the phase of the reflected signals received by the two antennas. A digital processor determines the phase difference between the two signals and calculates the object height.

    摘要翻译: 用于通过用第一和第二垂直间隔的天线接收反射信号来确定反映真实波束雷达信号的物体的高度的系统和方法。 接收器提供两个信号,指示由两个天线接收的反射信号的相位。 数字处理器确定两个信号之间的相位差并计算物体高度。

    Short duty cycle lidar
    8.
    发明申请
    Short duty cycle lidar 审中-公开
    短周期激光雷达

    公开(公告)号:US20060238742A1

    公开(公告)日:2006-10-26

    申请号:US11114731

    申请日:2005-04-25

    IPC分类号: G01C3/08 G01S13/00

    CPC分类号: G01S7/483 G01S17/10

    摘要: A method and system of frequency tagging lidar light signals is disclosed. An optical synthesizer can be used to provide a sequence of frequency tagged light signals so as to substantially mitigate ambiguity associated with received light signals. This results in a desirable reduction in the duration of a duty cycle of the lidar system, thus enhancing the resolution of the lidar system.

    摘要翻译: 公开了一种频率标签激光雷达信号的方法和系统。 可以使用光合成器来提供频率标记光信号的序列,以便基本上减轻与接收到的光信号相关联的模糊度。 这导致激光雷达系统的占空比持续时间的期望的降低,从而提高激光雷达系统的分辨率。

    3D display
    9.
    发明申请
    3D display 审中-公开
    3D显示

    公开(公告)号:US20060238523A1

    公开(公告)日:2006-10-26

    申请号:US11114739

    申请日:2005-04-25

    IPC分类号: G09G5/00

    摘要: A three dimensional display has an array of quantum dots configured to provide phase controlled light that defines a three dimensional image. A quantum dot driver can be used to determine which quantum dots are activated and when they are activated. A three dimensional phase pattern generator can be used to determine a phase pattern of light from the array of quantum dots that will provide a three dimensional image corresponding to a video signal provided thereto.

    摘要翻译: 三维显示器具有被配置为提供限定三维图像的相位控制光的量子点阵列。 量子点驱动器可用于确定哪些量子点被激活,何时被激活。 可以使用三维相位图发生器来确定来自量子点阵列的光的相位图案,其将提供对应于提供给其的视频信号的三维图像。

    Method, apparatus, and computer program product for radar detection of moving target
    10.
    发明申请
    Method, apparatus, and computer program product for radar detection of moving target 失效
    用于移动目标雷达检测的方法,装置和计算机程序产品

    公开(公告)号:US20050285774A1

    公开(公告)日:2005-12-29

    申请号:US10877261

    申请日:2004-06-25

    摘要: Methods, apparatus, and computer program products are provided for tracking at least one moving target with a radar device without requiring the use of Doppler information. The invention comprises scanning an area with radar signals at a first time to receive a first plurality of target data signals indicative of a position of the target at the first time and determining the position of the target at the first time by collecting the first plurality of target data signals into a first target data grouping, such that the first target data grouping defines a first reference point. Similarly, a second reference point for the target is determined for a second time, and the position of the first reference point is compared to the position of the second reference point to track the moving target. Advantageously, the tracked positions of the moving target may be used to predict a future position of the target at a subsequent time.

    摘要翻译: 提供了方法,装置和计算机程序产品,用于使用雷达装置跟踪至少一个移动目标,而不需要使用多普勒信息。 本发明包括在第一时间扫描具有雷达信号的区域以接收指示目标在第一时间的位置的第一多个目标数据信号,并且通过收集第一多个目标数据信号来确定目标的位置 目标数据信号转换成第一目标数据分组,使得第一目标数据分组定义第一参考点。 类似地,第二次确定目标的第二参考点,并且将第一参考点的位置与第二参考点的位置进行比较以跟踪移动目标。 有利地,移动目标的跟踪位置可以用于预测目标在随后的时间的未来位置。