| 摘要 |
The invention relates to a device and to a method for determining the position of a vehicle on or above a planet surface. The proposed device comprises a first means (101) for determining a first position (P1(t)) of the vehicle, a second means (102) for determining a movement direction (BR(t)) of the vehicle, a third means (103) for providing a number (n) of fixed point data, wherein the fixed point data specify, at least for significant radar objects (FROi) arranged in a stationary manner on the planet surface, the radar signature (RSFROi) thereof and the position (PFROi) thereof, where i=1, 2, . . . , n, a radar system (104) with a radar sensor arranged on the vehicle for scanning a current surrounding area of the vehicle by means of radio-frequency radiation and for continuously detecting radar data obtained in the process, wherein, for a number m of radar objects (ROk(t)) present in the surrounding area, the radar signatures (RSk(t)) thereof and the relative positions (&Dgr;POk(t) thereof in relation to the vehicle can be determined from the radar data, where k=0, 1, 2, . . . , m, and wherein the radar system (104) is configured and set up to determine a second position (P2(t)), and the first means (101) is configured and set up in such a way that the first position (P1(t)) of the vehicle can be corrected on the basis of the determined second position (P2(t)) and/or a position warning can be issued if the first position (P1(t)) and the second position (P2(t)) differ from one another by more than a predefined limit value. |
