无源重力梯度导航系统

IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences Pub Date : 1990-03-20 DOI:10.1109/PLANS.1990.66158

C. Affleck, A. Jircitano

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引用次数: 51

摘要

介绍了一种采用重力梯度图匹配技术的全无源导航系统。该系统不需要外部信息，且不发散、不干扰。该系统由一个惯性系统组成，通过定位更新从地图匹配到重力梯度仪输出。介绍了该系统相对于现有地形图匹配系统的优点。贝尔旋转加速度计重力梯度计系统用成熟的硬件解决了困难的仪器问题。解决了重力梯度图生成所需的数据库问题。以参数研究的形式对高度、速度、梯度计数目、梯度计质量和惯性元件质量等变量进行了精度分析

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Passive gravity gradiometer navigation system

A totally passive navigation system using gravity gradient map matching techniques is described. The system requires no external information and is nonemanating and nonjammable. The system consists of an inertial system updated by position fixing from map matching to gravity gradiometer outputs. The advantages of the system over existing terrain map matching systems are covered. The difficult instrumentation problem is solved with proven hardware by the Bell rotating accelerometer gravity gradiometer system. The issue of the database necessary for gravity gradient map generation is addressed. The results of an accuracy analysis in the form of a parametric study for such variables as altitude, speed, number of gradiometers, quality of the gradiometers, and quality of the inertial components are presented.<>

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IEEE Symposium on Position Location and Navigation. A Decade of Excellence in the Navigation Sciences

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