Object detection system and method

An object detection system for determining range and velocity of a target object by transmitting a frequency modulated continuous wave transmission signal and receiving transmission signal reflections of the transmission signal from the target object as a reception signal (Rx), the system comprising:

• a signal generator for generating the FMCW transmission signal, the transmission signal having multiple consecutive modulation blocks (M), each modulation block comprising a number of first type chirps, each first type chirp having a first slope, and a number of second type chirps, each second type chirp having a second slope different from the first slope, wherein two consecutive chirps of the same type have a frequency offset,
• a signal processing unit for processing a mixed signal based on the transmission signal and the reception signal and using the first type chirps and the second type chirps, in order to determine the range and velocity of the target object.