Patent ID: 7667637

Claim:
A radar system for detection of one or more objects, said system comprising: a radar wave transmitter for simultaneously transmitting a CW radar signal and a FM-CW radar signal, first, second and third radar wave receivers for receiving CW and FM-CW radar signals reflected from one or more objects present in a detection range of the radar system, three CW mixers comprising first second and third CW mixers for mixing CW transmission signals and reflected CW signals received by the first, second and third receivers, respectively, to produce one or more corresponding first, second and third CW beat signals, each first, second and third CW beat signal relating to the velocity of an object, and three FM-CW mixers comprising first, second and third FM-CW mixers for mixing FM-CW transmission signals and reflected FM-CW signals received by the first, second and third receivers, respectively, to produce one or more corresponding first, second and third FM-CW beat signals, each first, second and third FM-CW beat signal relating to the distance to and the velocity of an object, wherein at least two receivers are arranged along a first receiver direction and at least two receivers are arranged along a second receiver direction, said first receiver direction being different to the second receiver direction.