介绍了重力匹配导航的研究背景和工作流程,设计了基于中国沿海实际重力异常数据的仿真试验模型。采用多模型自适应卡尔曼滤波与绝对平方差两种不同的算法,在两条具有不同重力异常变化的航行线路上进行了仿真试验,验证了重力异常匹配的技术可行性。
The research background and the workflow of gravity matching navigation are introduced. Simulation model, which employes the true gravity anomalies data on the Chinese coastal waters, is designed by two different algorithms, multiple model adaptive Kalman filter and the method of the absolutely difference's square. Simulation testing is implemented in two routes that have different changing magnitude in the gravity anomalies. And satisfying results are obtained. It is testified the technological feasibility of gravity matching.