An apparatus for estimating the height at which a target flies over a reflective surface

摘要

There is disclosed an apparatus for estimating the height at which a target flies over a reflective surface. The apparatus comprises means for emitting a signal, means for receiving signals, including the emitted signal after it has been echoed by the target, and means for filtering the received signals. The apparatus also comprises means for modeling a direct signal coming directly from the target after the emitted signal has been echoed by the target. The apparatus also comprises means for modeling an indirect signal coming indirectly from the target after the emitted signal has been echoed by the target and has been reflected by the surface, based on reflection parameters. The means for filtering estimate dynamically the reflection parameters. Application : tracking radars, surveillance radars, GPS