| 摘要 |
The invention relates to a radar system for recording the environment of a motor vehicle, comprising: transmission means for emitting transmission signals using one or more transmitter antennae; receiving means for receiving transmission signals reflected by objects using one or more receiver antennae and signal processing means for processing the received signals. The system is characterised in that: it is equipped with transmitter and receiver antennae that are planar and are situated on a level surface; said transmitter and receiver antennae have at least approximately the same emission characteristics and the emission characteristics of the transmitter antennae can be different from those of the receiver antennae; received signals are acquired from different combinations of the transmitter and receiver antennae; in the signal processing means, the angular position in a spatial direction R is estimated for objects from said received signals, using the fact that the received signals from an individual object have different phase positions in relation to one another depending on the angular position of said object in the spatial direction R; and at least two of said transmitter and receiver antennae overlap with regard to the spatial direction R without being identical, said overlap being obtained by at least one of the following arrangements or configurations of the transmitter and receiver antennae: a) the antennae are offset in relation to one another with regard to the spatial direction S that runs perpendicular to the spatial direction R, in particular the transmitter antennae are positioned above the receiver antennae for a horizontal spatial direction R; b) the transmitter and/or the receiver antenna(e) has or have an oblique arrangement with regard to the spatial direction R; c) the antennae are interleaved with regard to the spatial direction R; d) the use of emitting or receiving elements is common to at least two transmitter or receiver antennae. |
