公开(公告)号：US06424290B1

公开(公告)日：2002-07-23

申请号：US07456820

申请日：1989-12-13

申请人： Gary E. O'Neil ,  Richard A. Lodwig

发明人： Gary E. O'Neil ,  Richard A. Lodwig

IPC分类号： G01S1300

CPC分类号： G01S13/58 ,  G01S13/003

摘要： The tracking of moving vehicles over long distances without emitting illumination signals is accomplished with a narrowband passive differential tracking system. Instead of Providing especially designed radar transmitters in a bistatic radar system, illuminators of opportunity (which may include UHF and VHF television station) are selected by their geographic locations so that they are in proximity to a moving target. The Doppler-shifted target reflected signals from the illuminators of opportunity are converted into digital data and combined with the independently derived initial target location and used to update the target's position and velocity by correlating the Doppler-shift with geographic coordinates. The correlation can be accomplished with a tracking algorithm which was designed for use in data processing of the signal processing system of the narrowband passive position tracking system.

摘要翻译： 通过窄带无源差分跟踪系统实现长距离移动车辆跟踪而不发出照明信号。 不是在双基地雷达系统中提供特别设计的雷达发射机，而是通过其地理位置选择机会照明器（可能包括UHF和VHF电视台），以便它们靠近移动目标。 来自机会照明器的多普勒偏移目标反射信号被转换为数字数据，并与独立导出的初始目标位置组合，并用于通过将多普勒频移与地理坐标相关联来更新目标的位置和速度。 可以通过设计用于窄带被动位置跟踪系统的信号处理系统的数据处理的跟踪算法来实现相关性。

公开(公告)号：US08130136B2

公开(公告)日：2012-03-06

申请号：US10388237

申请日：2003-03-14

申请人： Richard A. Lodwig ,  Sandra Lodwig, legal representative ,  Richard Lodwig, legal representative ,  Bonnie L. Adams

发明人： Richard A. Lodwig ,  Bonnie L. Adams

IPC分类号： G01S13/00

CPC分类号： G01S7/411 ,  G01S13/003

摘要： The present invention is directed to a system and method for the identification of a target object in PCL radar applications. The disclosed embodiments describe the systems and methods used in the identification of a target object from the collection of data representing specific target object features, such as velocity, altitude, fuselage length, wing length, or wing sweepback angle, and the comparison of selected target object features with a database of known aircraft features. The present invention also provides for the calculation of feature dimensions, such as the fuselage length, wing length, or wing sweepback angle from measurements associated with a peak signal lobe as a function of a bistatic aspect angle.

摘要翻译： 本发明涉及用于识别PCL雷达应用中的目标物体的系统和方法。 所公开的实施例描述了从表示特定目标对象特征的数据的收集（例如速度，高度，机身长度，机翼长度或机翼扫掠角度）以及所选择的目标的比较来识别目标对象的系统和方法 具有已知飞行器特征的数据库的对象特征。 本发明还提供了一种特征尺寸的计算，例如机身长度，机翼长度或来自与峰值信号波瓣相关联的测量的机翼扫掠角作为双稳态角度的函数。

公开(公告)号：US20110210885A1

公开(公告)日：2011-09-01

申请号：US10388237

申请日：2003-03-14

申请人： Richard A. Lodwig ,  Sandra Lodwig ,  Richard Lodwig ,  Bonnie L. Adams

发明人： Richard A. Lodwig ,  Sandra Lodwig ,  Richard Lodwig ,  Bonnie L. Adams

IPC分类号： G01S13/90 ,  G01S13/00

CPC分类号： G01S7/411 ,  G01S13/003

摘要： The present invention is directed to a system and method for the identification of a target object in PCL radar applications. The disclosed embodiments describe the systems and methods used in the identification of a target object from the collection of data representing specific target object features, such as velocity, altitude, fuselage length, wing length, or wing sweepback angle, and the comparison of selected target object features with a database of known aircraft features. The present invention also provides for the calculation of feature dimensions, such as the fuselage length, wing length, or wing sweepback angle from measurements associated with a peak signal lobe as a function of a bistatic aspect angle.

摘要翻译： 本发明涉及用于识别PCL雷达应用中的目标物体的系统和方法。 所公开的实施例描述了从表示特定目标对象特征的数据的收集（例如速度，高度，机身长度，机翼长度或机翼扫掠角度）以及所选择的目标的比较来识别目标对象的系统和方法 具有已知飞行器特征的数据库的对象特征。 本发明还提供了一种特征尺寸的计算，例如机身长度，机翼长度或来自与峰值信号波瓣相关联的测量的机翼扫掠角作为双稳态角度的函数。

公开(公告)号：US06697012B2

公开(公告)日：2004-02-24

申请号：US10138376

申请日：2002-05-06

申请人： Richard A. Lodwig ,  Bonnie L. Adams ,  Gregory A. Baker

发明人： Richard A. Lodwig ,  Bonnie L. Adams ,  Gregory A. Baker

IPC分类号： G01S1308

CPC分类号： G01S13/003 ,  G01S13/878

摘要： A system and method for detecting and tracking a target object, including the calculation of the target object's altitude, is disclosed. During the processing of signals received by a receiver, the system selectively calculates the altitude of the target object from signals modified by an interference effect pattern formed by the signals broadcast by a transmitter, or from the calculation of geometric shapes associated with three or more transmitters and determining the intersection point of those shapes.

摘要翻译： 公开了一种用于检测和跟踪目标对象的系统和方法，包括目标对象的高度的计算。 在处理由接收机接收到的信号的过程中，系统有选择地通过由由发射机广播的信号形成的干扰效应模式修改的信号，或从与三个或更多个发射机相关联的几何形状的计算来计算目标对象的高度 并确定这些形状的交点。

公开(公告)号：US6137439A

公开(公告)日：2000-10-24

申请号：US148988

申请日：1998-09-08

申请人： Bert L. Bradford ,  Richard A. Lodwig

发明人： Bert L. Bradford ,  Richard A. Lodwig

IPC分类号： G01S13/00 ,  G01S13/536 ,  G01S13/66 ,  G01S7/493 ,  G01S7/536

CPC分类号： G01S13/536 ,  G01S13/003 ,  G01S13/66

摘要： In a continuous wave Doppler system in which a fixed transmitter transmits a continuous wave signal to be reflected by moving targets and by fixed structure, an aircraft receives the reflective signals at two spaced apart antennas. The signals reflected from moving targets are distinguished from ground clutter reflected from fixed structure by the phase difference between the Doppler signals receive by the two antennas. The signals reflected from moving targets are distinguished from the ground clutter in response to the phase difference between the Doppler signals received by the two antennas being not equal to a phase difference value determined to be the phase difference for clutter signals. The phase difference value for clutter signals is determined from a function expressing the phase difference value as a linear variation with the Doppler frequency of the signals.

摘要翻译： 在连续波多普勒系统中，固定发射机发射连续波信号以通过移动目标和固定结构反射，飞机在两个间隔开的天线处接收反射信号。 从移动目标反射的信号通过由两个天线接收的多普勒信号之间的相位差与固定结构反射的地面杂波区分开来。 响应于由两个天线接收的多普勒信号之间的相位差不等于被确定为杂波信号的相位差的相位差，从运动目标反射的信号与地面杂波区分开。 用于表示相位差值的函数作为信号的多普勒频率的线性变化来确定杂波信号的相位差值。

公开(公告)号：US5912640A

公开(公告)日：1999-06-15

申请号：US972568

申请日：1997-11-18

申请人： Bert L. Bradford ,  Richard A. Lodwig

发明人： Bert L. Bradford ,  Richard A. Lodwig

IPC分类号： F41G7/30 ,  G01S13/58 ,  G01S13/72 ,  G01S13/52

CPC分类号： F41G7/303 ,  G01S13/583 ,  G01S13/584 ,  G01S13/723

摘要： An estimate of the time of the boost engine cut-off of a missile is provided by irradiating the missile after it is launched with continuous wave signals. The reflected continuous wave signals are detected and an inflection in the Doppler measurements of the reflected continuous wave signals provide an initial estimate of the boost engine cut-off time. A Kalman filter is used to provide initial estimates of the position and velocity of the missile at the boost engine cut-off time and a square root information filter responding to the Doppler measurement residuals after boost engine cut-off reduces the error in the initial estimate of the boost engine cut-off time to a minimum.

摘要翻译： 通过用连续的波信号发射导弹后，提供导弹的升压发动机截止时间的估计。 检测反射的连续波信号，并且反射的连续波信号的多普勒测量中的拐点提供升压引擎截止时间的初始估计。 卡尔曼滤波器用于提供在升压引擎截止时间的导弹的位置和速度的初始估计，以及响应于增压引擎截止之后的多普勒测量残差的平方根信息滤波器减少初始估计中的误差 的升压引擎截止时间至少。