摘要
旋转加速度计式重力梯度测量方法通过旋转调制的方式提取微弱的重力梯度信息。首先从测量原理出发,指出实现该方案的主要难点及对策,提炼出关键技术;其次,以多种方式开展引力梯度效应试验,验证了理论的正确性;最后,尝试了面向载体应用的动态适应性试验,达到地面低动态条件下的技术要求,为开展高动态条件下的重力梯度测量奠定基础。
Rotational accelerometer gravity gradient measurement method extracts weak gravitational gradient information by rotating modulation. Firstly, in this paper, main difficulties and countermeasures in the process of realizing the scheme are pointed out , including the measure- ment principle, and the key technology is drown out. Secondly, the gravitational gradient effect test is carried out in many ways and the correctness of the theory is validated. Finally, the dynamic adaptation test is carried out, the technical requirements are achieved within the low dynamic conditions on the ground, and the foundation to carry out high dynamic conditions under the gravity gradient measurement is laid.
作者
杨晔
李达
YANG Ye LI Da(Tianjin Navigation Instrument Research Institute, Tianjin 300131, China)
出处
《导航定位与授时》
2017年第4期20-28,共9页
Navigation Positioning and Timing
基金
基金项目:科技部航空重力梯度仪研制(SQ2017YFSF040005)
关键词
重力梯度仪
高分辨率加速度计
标度因数一致性调整
引力梯度试验
动态试验
Gravity gradiometer
High-resolution accelerometer
Scale factor consistency adjust-ment
Gravitational gradient test
Dynamic test
