Invention Grant
US08816896B2 On-board INS quadratic correction method using maximum likelihood motion estimation of ground scatterers from radar data
有权
使用雷达数据对地面散射体进行最大似然运动估计的车载INS二次校正方法
- Patent Title: On-board INS quadratic correction method using maximum likelihood motion estimation of ground scatterers from radar data
- Patent Title (中): 使用雷达数据对地面散射体进行最大似然运动估计的车载INS二次校正方法
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Application No.: US13469539Application Date: 2012-05-11
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Publication No.: US08816896B2Publication Date: 2014-08-26
- Inventor: Theagenis J. Abatzoglou , Johan E. Gonzalez , Joel K. McWilliams , Raymond Samaniego
- Applicant: Theagenis J. Abatzoglou , Johan E. Gonzalez , Joel K. McWilliams , Raymond Samaniego
- Applicant Address: US MA Waltham
- Assignee: Raytheon Company
- Current Assignee: Raytheon Company
- Current Assignee Address: US MA Waltham
- Agency: Christie, Parker & Hale, LLP
- Main IPC: G01S13/58
- IPC: G01S13/58
Abstract:
System and method for calculating three dimensional residual motion errors of a moving platform with respect to a point of interest by receiving a radar signal from the point of interest (302); forming a radar image including a plurality of scatterers (304); using an MLE method to obtain range, radial velocity and acceleration of the moving platform for a first peak scatterer in the radar image (306); correcting a location of the first peak scatterer with respect to a scene center of the point of interest (312); updating the obtained radial acceleration responsive to the corrected location (314); and updating the obtained radial velocity of the moving platform responsive to the updated radial acceleration (316).
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