System studies for an optical gradiometer mission (B07)

点击翻译按钮获取中文摘要

Our objective is to explore the potential of future space gravity gradiometry missions in the light of the newest developments in inertial sensor technology, with a special emphasis on laser interferometry metrology. First, we will investigate what are the requirements on the main parameters (noise level, calibration accuracy, dynamic range, etc.) of the different sensors involved in the measurement process, but also when considering the full gradiometry mission (orbit, drag-free control). Second, and based on assumptions made in a feasibility study, we will analyse and quantify the science benefits of such a space gradiometry mission, in particular for the recovery of the Earth's time-variable gravity field.