System studies for an optical gradiometer mission (B07)

光学梯度仪任务的系统研究（B07）

• 批准号: 260796118
• 金额: --
• 依托单位: Institut für Erdmessung
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/260796118?language=en
• 关键词: System; studies; optical; gradiometer; mission

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.

我们的目标是根据惯性传感器技术的最新发展，探索未来空间重力梯度测量任务的潜力，特别强调激光干涉测量。首先，我们将研究在测量过程中涉及的不同传感器的主要参数（噪声级，校准精度，动态范围等）的要求，以及在考虑全梯度测量任务（轨道，无拖拽控制）时的要求。其次，根据可行性研究中的假设，我们将分析和量化这种空间梯度测量任务的科学效益，特别是对恢复地球随时间变化的重力场。