发明名称 |
CASCADED COUPLED POSITIONING SYSTEM |
摘要 |
A cascaded coupled positioning system is provided for acquiring a position of a vehicle. In the current disclosure, a global navigation satellite system is coupled with a first inertial measurement unit. The global navigation satellite system is coupled with the first inertial measurement unit by using a first signal processing unit configured to provide a tightly coupled positioning solution. The tightly coupled positioning solution of the first signal processing unit is integrated with a second inertial measurement unit. The integration is performed using a second signal processing unit configured to provide a loosely coupled positioning solution. |
申请公布号 |
US2015276936(A1) |
申请公布日期 |
2015.10.01 |
申请号 |
US201414230716 |
申请日期 |
2014.03.31 |
申请人 |
Caterpillar Inc. |
发明人 |
Friend Paul R.;Reiners Eric A |
分类号 |
G01S19/47 |
主分类号 |
G01S19/47 |
代理机构 |
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代理人 |
|
主权项 |
1. A cascaded coupled vehicle positioning system comprising:
a global navigation satellite system configured to generate a position signal corresponding to a vehicle; a first inertial measurement unit configured to collect a first information associated with the vehicle; a first signal processing unit configured to generate a first positioning data associated with the vehicle based on the position signal and the first information, wherein the first signal processing unit provides a tightly coupled positioning solution; a second inertial measurement unit configured to collect a second information associated with the vehicle, wherein the second inertial measurement unit has a higher accuracy than the first inertial measurement unit; and a second signal processing unit configured to generate a second positioning data associated with the vehicle based on the first positioning data and the second information, wherein the second signal processing unit provides a loosely coupled positioning solution. |
地址 |
Peoria IL US |