| 摘要 |
A range estimation system and method has a data base containing data for identification of certain targets and uses data for estimating the initial range of each of the targets as a function of the observed dimensions of the targets. The system includes a sensor (1) which observes a scene containing a target a plurality of spaced apart times while the sensor is moving relative to the target to provide data from each observation of the scene relating to the dimensions of the target within the scene. The remaining range to the target is estimated from the observed dimensions of the target from the range travelled since a prior estimation of range and from a prior estimation of the remaining range to the target. The sensor (1) provides electrical signals representing the observed scene (3) and can be a visible light or infrared sensor. A computer (9) is used to identify the target from the data base, estimate the initial range to the target and estimate the remaining range from the range travelled between successive observations of the scene and the change of dimensions of the target in the observed scene. <IMAGE> |
