首页>
外国专利>
Method for estimating the direction of arrival of navigation signals at a receiver after reflection by walls in a satellite positioning system
Method for estimating the direction of arrival of navigation signals at a receiver after reflection by walls in a satellite positioning system
展开▼
机译:在卫星定位系统中被壁反射后估计导航信号到达接收机的方向的方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method includes estimating a position of a receiver, aboard a moving object, on the basis of the navigation signals emitted by satellites received by an antenna in an antenna array placed on the moving object, and using a three-dimensional geographical map to deduce, geometrically, on the basis of the position of the receiver and of a ray casting starting from the receiver, the number of paths reflected on walls of buildings present in a scene corresponding to an environment surrounding the receiver. The determined number of reflected paths is used to initialize an algorithm for estimating angles of arrival of multi-paths to deduce therefrom angles of arrival of the paths reflected on the walls before reaching the receiver. Optionally, the method can comprise making it possible to bound the distance information error due to a multi-path to render the estimation of direction of arrival of the signals more efficacious.
展开▼