【摘要】 当一个载体(比如飞机)处于一般运动状态时,它不仅"感受"到引力,同时还"感受"到惯性力。因此,在动态航空重力测量中(载体是飞机),为了提取出重力(或引力)信息,关键的问题是解决如何有效地将引力与惯性力分离开来。引力与惯性力的分离涉及到内部分离(不借助外部观测信号)和外部分离(仅利用外部观测信号)。本文的研究仅限于内部分离问题。本文以广义相对论为基础,在仔细研究了受力质点的世界线偏离方程之后得出结论,纯引力场信息可通过黎曼张量反映出来,而黎曼张量可以用重力梯度仪加惯性平台(惯性陀螺)来测定。同时,本文还讨论了黎曼张量与牛顿引力理论中的重力梯度之间的关系并建立了仅用内部观测手段实施航空重力测量的模型。更多还原

【Abstract】 When an aircraft(such as an airplane) is in general motional state,it could be affected not only by gravitation but also by inertia force. Thus,in the dynamic airborne gravity measurement (airplane as an aircraft) the key problem is to separate the gravitation from inertia effectively.The separation involves inner separation (without outer observing signals) and outer separation (only the outer observing signals used).The paper′s study is only limited in the former. On the basis of general relativity and after the careful research on the world line deviation equation of forced particle, the pure gravitation field information can be reflected by the Riemann tensor and Riemann tensor can be measured by using a gradiometer and an inertia platform(inertia gyro). At the same time,the relations between Riemann tensor and gravity gradient in Newton′s gravitation theory are also discussed and the model of airborne gravity measurements abtained only by using the inner observational mean is established.更多还原