摘要
全加速度计惯性导航技术侧重于测量排除重力干扰影响的载体运动加速度,而利用加速度计进行重力梯度测量则侧重于测量排除载体运动影响的重力变化。一方的测量信号恰为另一方的噪声。利用加速度计技术,将二者结合在一起,理论上推导出同时进行惯性导航与重力梯度测量的可行性。基于此原理,论文设计了一种12加速度计的全加速度计惯性导航与重力梯度测量系统。论文给出系统进行惯性导航与梯度测量的公式。并预计,在未来几十年中,惯性导航与重力梯度测量将成为同一概念,此系统将成为未来惯性导航的发展方向。
The all-accelerometer inertia navigation system can measure moving-base acceleration in the presence of unwanted variations in gravity, while the gravitational gradient system can measure variation in gravity in the presence of unwanted motion. Thus one system＇s signal is the other system＇s noise. The paper demonstrated the feasibility of simultaneously implementing inertial navigation and gravity gradient determination in theory using the technology of acceterometer. Based on the theory, the paper designed an all-acceleration inertia navigation and gravity gradient measuring system using 12 accelerometers, and gave the formula of the system. The paper predicts that the inertial navigation and gravity gradient measuring would become the same concept, and the system would become the direction of inertial navigation.
出处
《中国惯性技术学报》
EI
CSCD
北大核心
2009年第2期132-135,共4页
Journal of Chinese Inertial Technology
基金
国防科技预研项目(51309010201)
关键词
全加速度计
惯性导航
重力梯度
可行性
all-acceleration
inertial navigation
gravitational gradient
feasibility
