发明授权
- 专利标题: Systems and methods for navigation using cross correlation on evidence grids
- 专利标题(中): 导航系统和方法在证据网格上使用互相关
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申请号: US12963893申请日: 2010-12-09
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公开(公告)号: US08855911B2公开(公告)日: 2014-10-07
- 发明人: Yunqian Ma , John B. McKitterick , Wesley J. Hawkinson
- 申请人: Yunqian Ma , John B. McKitterick , Wesley J. Hawkinson
- 申请人地址: US NJ Morristown
- 专利权人: Honeywell International Inc.
- 当前专利权人: Honeywell International Inc.
- 当前专利权人地址: US NJ Morristown
- 代理机构: Fogg & Powers LLC
- 主分类号: G01C21/16
- IPC分类号: G01C21/16 ; G01S5/16 ; G01S5/02
摘要:
Systems and methods for navigation using cross correlation on evidence grids are provided. In one embodiment, a system for using cross-correlated evidence grids to acquire navigation information comprises: a navigation processor coupled to an inertial measurement unit, the navigation processor configured to generate a navigation solution; a sensor configured to scan an environment; an evidence grid creator coupled to the sensor and the navigation processor, wherein the evidence grid creator is configured to generate a current evidence grid based on data received from the sensor and the navigation solution; a correlator configured to correlate the current evidence grid against a historical evidence grid stored in a memory to produce displacement information; and where the navigation processor receives correction data derived from correlation of evidence grids and adjusts the navigation solution based on the correction data.
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