发明名称 |
INERTIAL NAVIGATION SYSTEM ERROR CORRECTION |
摘要 |
Methods and apparatus for: (a) the correction of one or more elements determined from a first set of continuous gyro and accelerometer measurements comprising using a second set of discontinuously measured higher accuracy accelerometer measurements doubly integrated in an inertial coordinate system, (b) determining relative movement of a vehicle using a first set of acceleration measurements that do not include components of acceleration caused by the Earth's gravitational field, and a second set of acceleration measurements that do include components of acceleration caused by the Earth's gravitational field; and (c) correcting errors in an inertial navigation system positioned in a vehicle comprising using independently measured changes in position of the vehicle relative to an inertial coordinate frame.
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申请公布号 |
US2009204323(A1) |
申请公布日期 |
2009.08.13 |
申请号 |
US20090362383 |
申请日期 |
2009.01.29 |
申请人 |
NORTHROP GRUMMAN CORPORATION |
发明人 |
HUDDLE JAMES R. |
分类号 |
G01C21/00;G01C21/10;G01C21/16;G01C25/00;G01S19/53;G08G1/0969 |
主分类号 |
G01C21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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