Photonic mixer device-system, for motor vehicle, has modulation unit producing modulation signal, whose phasing is individually changed for transmission units such that distance values of object are determined with each transmission unit

摘要

The system has intensity modulated transmission units (3, 3`, 3``) arranged at different positions relative to an object (1). A photonic mixer device (PMD)-receiver (4) receives signals transmitted by the transmission units and reflected from the object. A central modulation unit (5) produces a common modulation signal for the transmission units. Phasing of the modulation signal is individually changed for the transmission units in such a manner that equal distance values of the object are determined with each transmission unit. An independent claim is also included for a method for distance measurement of an object by using a photonic mixer device (PMD)-system.