公开(公告)号：US09273965B2

公开(公告)日：2016-03-01

申请号：US14171649

申请日：2014-02-03

Applicant: RAYTHEON COMPANY

Inventor： Mac Allen Cody ,  Heidi Jean Kruesi ,  Robert James Cole ,  Richard Matthew Wright

IPC: G01C21/00

CPC classification number: G01C21/00 ,  G01S13/723 ,  G01S13/878 ,  G01S15/66 ,  G01S15/876 ,  G01S2013/466 ,  G01S2013/468 ,  G01S2015/465 ,  G06T2207/20076

Abstract: A method for estimating a boundary for a future location of a moving object includes: receiving location information about two previous locations of the moving object represented by a first and a second elliptical error probabilities (EEPs); representing each of the EEPs as a conic section via an implicit quadratic equation; defining four tangent lines from the implicit quadratic equation, each tangent line being tangent to both of the EEPs; determining two transverse tangent lines from the four tangent lines; forming a cone in a direction from the first EEP to the second EEP from the two transverse tangent lines; and estimating the boundary of the future location of the moving object as a first side of the cone formed by a first transverse tangent line and a second side of the cone formed by a second transverse tangent line, of the two transverse tangent lines.

Abstract translation: 一种用于估计移动物体的未来位置的边界的方法包括：接收关于由第一和第二椭圆误差概率（EEPs）表示的运动物体的两个先前位置的位置信息; 通过隐式二次方程将每个EEPs表示为圆锥截面; 根据隐式二次方程定义四条切线，每条切线与两个EEPs相切; 从四条切线确定两条横切线; 从两个横向切线在从第一EEP到第二EEP的方向上形成锥体; 并且估计所述运动物体的未来位置的边界，作为由所述两个横向切线的由第二横向切线形成的锥体的第一横向切线和第二侧形成的锥体的第一侧。

公开(公告)号：US20150219459A1

公开(公告)日：2015-08-06

申请号：US14171649

申请日：2014-02-03

Applicant: RAYTHEON COMPANY

Inventor： Mac Allen Cody ,  Heidi Jean Kruesi ,  Robert James Cole ,  Richard Matthew Wright

IPC: G01C21/00

CPC classification number: G01C21/00 ,  G01S13/723 ,  G01S13/878 ,  G01S15/66 ,  G01S15/876 ,  G01S2013/466 ,  G01S2013/468 ,  G01S2015/465 ,  G06T2207/20076

Abstract: A method for estimating a boundary for a future location of a moving object includes: receiving location information about two previous locations of the moving object represented by a first and a second elliptical error probabilities (EEPs); representing each of the EEPs as a conic section via an implicit quadratic equation; defining four tangent lines from the implicit quadratic equation, each tangent line being tangent to both of the EEPs; determining two transverse tangent lines from the four tangent lines; forming a cone in a direction from the first EEP to the second EEP from the two transverse tangent lines; and estimating the boundary of the future location of the moving object as a first side of the cone formed by a first transverse tangent line and a second side of the cone formed by a second transverse tangent line, of the two transverse tangent lines.

Abstract translation: 一种用于估计移动物体的未来位置的边界的方法包括：接收关于由第一和第二椭圆误差概率（EEPs）表示的运动物体的两个先前位置的位置信息; 通过隐式二次方程将每个EEPs表示为圆锥截面; 根据隐式二次方程定义四条切线，每条切线与两个EEPs相切; 从四条切线确定两条横切线; 从两个横向切线在从第一EEP到第二EEP的方向上形成锥体; 并且估计所述运动物体的未来位置的边界，作为由所述两个横向切线的由第二横向切线形成的锥体的第一横向切线和第二侧形成的锥体的第一侧。