公开(公告)号：US20150276936A1

公开(公告)日：2015-10-01

申请号：US14230716

申请日：2014-03-31

Applicant: Caterpillar Inc.

Inventor： Paul R. Friend ,  Eric A Reiners

IPC: G01S19/47

CPC classification number: G01S19/47 ,  G01S19/49

Abstract: 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.

Abstract translation: 提供了用于获取车辆位置的级联耦合定位系统。 在本公开中，全球导航卫星系统与第一惯性测量单元耦合。 全球导航卫星系统通过使用配置成提供紧密耦合的定位解决方案的第一信号处理单元与第一惯性测量单元耦合。 第一信号处理单元的紧耦合定位解决方案与第二惯性测量单元集成。 使用被配置为提供松散耦合的定位解决方案的第二信号处理单元来执行集成。