| 摘要 |
The invention relates to an aeronautical vehicle (2) comprising a spectrometer (4) suitable for generating a spectral analysis of radiation reflected by a portion (12) of the earth's surface, the vehicle (2) being in orbit around the earth and moving relative to the earth's surface. The spectrometer includes a filter (14) capable of filtering light in a narrow spectral band of incident radiation depending on the angle of incidence of said radiation on the filter; said filtered spectral band being capable of varying continuously in a broader spectral range when the angle of incidence of said incident radiation varies continuously. The vehicle (2) includes means (6, 8) for determining the spectral band of filtered radiation from a single surface portion (12) for a plurality of positions of the vehicle (2) relative to the surface portion (12). |
