The Geodetic Reference Antenna in Space (GRASP) Mission Concept
The Geodetic Reference Antenna in Space (GRASP) Mission Concept
复制标题
太空大地测量参考天线 (GRASP) 任务概念
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
S. Wu
中科院分区：
文献类型：
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作者：
Y. Bar;B. Haines;S. Wu
空间大地测量参考天线（GRASP）是一个微型卫星使命概念，致力于增强所有空间大地测量技术，有望革命性地改进TRF的定义，其致密化和可访问性。GRASP将GPS、SLR、VLBI和DORIS传感器配置在一个高度校准和可建模的航天器上，为迄今为止难以解决的问题提供了一种创新的天基方法：在用于定义和传播TRF的关键大地测量技术之间建立精确和稳定的联系。大型类人猿生存方案还为另一个难题提供了解决办法，即对用于发射和接收当前和未来全球导航卫星系统无处不在的信号的无数天线进行一致校准。由此改进的全球导航卫星系统信号建模将有利于这些系统的所有精密应用，而这些应用是许多地球科学飞行任务的基石。
The Geodetic Reference Antenna in Space (GRASP) is a micro satellite mission concept dedicated to the enhancement of all the space geodetic techniques, promising revolutionary improvements to the definition of the TRF, its densification, and accessibility. GRASP collocates GPS, SLR, VLBI, and DORIS sensors on a supremely calibrated and modelable spacecraft, offering an innovative space-based approach to a heretofore intractable problem: establishing precise and stable ties between the key geodetic techniques used to define and disseminate the TRF. GRASP also offers a solution to another difficult problem, namely, the consistent calibration of the myriad antennas used to transmit and receive the ubiquitous signals of the present and future Global Navigation Satellite Systems (GNSS). The resulting improvement in GNSS signal modeling will benefit all precision applications of these systems, which are the cornerstone of many Earth science missions.