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Ultra-tightly coupled global navigation satellite system space borne receiver system
Ultra-tightly coupled global navigation satellite system space borne receiver system
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机译：超紧密耦合的全球导航卫星系统星载接收机系统
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摘要
A GNSS ultra-tight coupling (UTC) receiver architecture applicable to space borne orbit platforms is described. A receiver in accordance with this architecture retains the rotational motion sensors typically found in an inertial measurement unit (IMU) of a conventional UTC receiver, but replaces the IMU accelerometer sensors with precise orbital dynamics models to predict the translational motion of the platform center of gravity (CG). Drag and radiation pressure may be modeled as well. The various models can be implemented in software. The IMU rotational sensors are retained for compensation of the GNSS antenna lever arm effect due to platform rotation.
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