| 摘要 |
It shall be made possible, in a simple manner and with low costs, to achieve a determination of the distance between a reference object and at least one target object located in the surveillance area and/or the speed of at least one target object located in the surveillance area, with high accuracy. For this purpose, in the optical system, the surveillance area is divided into several target sectors that respectively encompass a certain angular range in horizontal direction and vertical direction. The measuring unit acquiring the measured values comprises a receiver unit with a number of parallel-connected receiver elements corresponding with the number of the target sectors, whereby each receiver element detects the reflected signal from one of the target sectors as received signal. A control unit connected after the measuring unit comprises a number of evaluating stages corresponding to the number of the receiver elements, whereby each evaluating stage evaluates the received signal of a receiver element stemming from a target sector. Optical system to be implemented in driver assistance systems for motor vehicles.
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