| 摘要 |
The invention relates to a method for determining expectancy ranges with which echoes from a level envelope curve produced by a level measuring instrument (10) are associated. The temporal behaviour of past echo data is taken into account during the determination of said expectancy ranges. Due to the fact that the expectancy ranges have a pre-determinable width, it can be established, with pre-determinable probability, whether an echo associated with one such range whether it be a level echo or a spurious echo has been correctly allocated or not to said range. If, for example, a certain expectancy range has been predicted for a level echo, it can be concluded, with pre-determinable probability, that an echo falling in said expectancy range is actually a level echo. The invention also relates to an evaluation device (20) for carrying out said method, to a computer program, and to a computer program product containing instructions for carrying out the inventive method. |
