Radar system comprising: at least one radar transmission unit (3-1, 3-2, 3-3, 3-n), at least one radar reception unit (4-1, 4-2, 4-3, 4-n), a central unit, and at least one glass fiber, the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) and the at least one radar reception unit (4-1, 4-2, 4-3, 4-n) being connected to the central unit at least in portions via the at least one glass fiber, the central unit comprising a central optical transmission unit which is designed to provide an optical radar driver signal and to couple this signal into the at least one glass fiber, and the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) comprising an optical reception unit and a radar transmitter, the optical reception unit being designed to receive the optical radar driver signal via the at least one glass fiber and convert this signal into an electrical radar driver signal and provide this signal to drive the radar transmitter, the at least one radar reception unit (4-1, 4-2, 4-3, 4-n) comprising a radar receiver, a mixer, and an optical modulation unit, the mixer being designed to mix a radar echo signal received by the radar receiver with the electrical radar driver signal, and the modulation unit being designed to modulate the mixed signal onto the optical radar driver signal and couple it into the at least one glass fiber, and the central unit further comprising a central optical reception unit and an evaluation unit, the evaluation unit being designed to evaluate the modulated signal received by the central optical reception unit and to output radar information derived therefrom, characterized in that the optical radar driver signal consisting of a radar carrier signal having a frequency f carrier and a radar ramp signal having the frequency f ramp is generated in the central optical transmission unit by modulating these onto an optical carrier signal having a particular carrier frequency, the optical radar carrier signal and the radar ramp signal having a frequency corresponding to only a fraction of an electrical carrier frequency necessary for operating the radar transmitter, the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) comprising a multiplier unit, the optical radar driver signal being converted into an electrical signal by means of the optical reception unit in the radar transmission unit (3-1, 3-2, 3-3, 3-4), and the electrical signal being multiplied and provided into an electrical radar driver signal having the necessary electrical carrier frequency for the radar transmitter by means of the multiplier unit. at least one radar transmission unit (3-1, 3-2, 3-3, 3-n), at least one radar reception unit (4-1, 4-2, 4-3, 4-n), a central unit, and at least one glass fiber, the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) and the at least one radar reception unit (4-1, 4-2, 4-3, 4-n) being connected to the central unit at least in portions via the at least one glass fiber, the central unit comprising a central optical transmission unit which is designed to provide an optical radar driver signal and to couple this signal into the at least one glass fiber, and the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) comprising an optical reception unit and a radar transmitter, the optical reception unit being designed to receive the optical radar driver signal via the at least one glass fiber and convert this signal into an electrical radar driver signal and provide this signal to drive the radar transmitter, the at least one radar reception unit (4-1, 4-2, 4-3, 4-n) comprising a radar receiver, a mixer, and an optical modulation unit, the mixer being designed to mix a radar echo signal received by the radar receiver with the electrical radar driver signal, and the modulation unit being designed to modulate the mixed signal onto the optical radar driver signal and couple it into the at least one glass fiber, and the central unit further comprising a central optical reception unit and an evaluation unit, the evaluation unit being designed to evaluate the modulated signal received by the central optical reception unit and to output radar information derived therefrom, characterized in that the optical radar driver signal consisting of a radar carrier signal having a frequency f carrier and a radar ramp signal having the frequency f ramp is generated in the central optical transmission unit by modulating these onto an optical carrier signal having a particular carrier frequency, the optical radar carrier signal and the radar ramp signal having a frequency corresponding to only a fraction of an electrical carrier frequency necessary for operating the radar transmitter, the at least one radar transmission unit (3-1, 3-2, 3-3, 3-n) comprising a multiplier unit, the optical radar driver signal being converted into an electrical signal by means of the optical reception unit in the radar transmission unit (3-1, 3-2, 3-3, 3-4), and the electrical signal being multiplied and provided into an electrical radar driver signal having the necessary electrical carrier frequency for the radar transmitter by means of the multiplier unit.