| 发明名称 |
SYSTEM AND METHOD FOR DETERMINING GEO LOCATION OF A TARGET USING A CONE COORDINATE SYSTEM |
| 摘要 |
A method for determining geo-position of a target by an aircraft includes: receiving navigation data related to the aircraft including aircraft attitude information; receiving multilateration information related to the target including an angle to the target; calculating an axis for a cone fixed to the aircraft, based on the received aircraft attitude information; calculating a central angle for the cone from the received angle to the target; generating two vectors orthogonal to the cone axis; calculating a cone model from the axis, the central angle and the two vectors; and intersecting the cone model with an earth model to obtain a LEP curve, wherein the LEP curve is used to determine the geo position of the target. |
| 申请公布号 |
US2016061932(A1) |
申请公布日期 |
2016.03.03 |
| 申请号 |
US201314061337 |
申请日期 |
2013.10.23 |
| 申请人 |
RAYTHEON APPLIED SIGNAL TECHNOLOGY, INC. |
发明人 |
May William D. |
| 分类号 |
G01S5/02 |
主分类号 |
G01S5/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method performed by one or more processors for determining geo-position of a target by an aircraft, the method comprising:
receiving navigation data related to the aircraft including aircraft attitude information; receiving multilateration information related to the target including an angle to the target; calculating an axis for a cone fixed to the aircraft, based on the received aircraft attitude information; calculating a central angle for the cone from the received angle to the target; generating two vectors orthogonal to the cone axis; calculating a cone model from the axis, the central angle and the two vectors; and intersecting the cone model with an earth model to obtain a locus of emitter positions (LEP) curve, wherein the LEP curve is used to determine the geo position of the target. |
| 地址 |
Waltham MA US |
