Radar system and method

A radar system, comprising:

• a radiation transmission unit, a radiation collection unit, a local oscillator, and a processing unit;
• the radiation transmission unit is configured for generating electromagnetic radiation formed by a plurality of pairs of quantum entangled photons comprising first transmitted photons (signal) and second reference photons (idler);
• the radiation transmission unit is configured to transmit an interrogating signal formed of the first transmitted photons toward a region to be inspected and to measure the second reference photons to obtain and store measured data thereof;
• the radiation collection unit comprises an array of single photon detectors (SPDS), each SPDS is configured to receive photons reflected from one or more objects in said region and generate data indicative of one or more parameters of the collected photons, wherein the data comprises data on spatial arrangement of collected radiation, and wherein each SPDS comprises one or more color centers within a crystal structure;
• and
• the processing unit is configured to receive stored measured data on the second reference photons from the radiation transmission unit and data of parameters of the collected photons from the radiation collection unit, and to determine correlation between the measured reference photons and the collected photons to thereby differentiate within the collected photons between noise and reflection of said first transmitted photons from one or more objects in the region to be inspected;
• wherein said radiation transmission unit is operable to determine phase of the second reference photons with respect to phase of said local oscillator and provide measured data comprising phase relation distribution of said second reference photons, said radiation collection unit operates for determining phase relations between collected photons and phase of said local oscillator, thereby enabling said processing unit to determine phase relation distribution correlation between the measured reference photons and the collected photons.