Radar chip circuit based on microwave photon technology, radar system and imaging method

• Main Authors: LI WANGZHE, MA WEICHAO
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention discloses a radar chip circuit based on a microwave photon technology, a radar system and an imaging method. According to the invention, a microwave photon radar transmitting link and a receiving link based on a parallel modulation mixing receiving structure are integrated on a photon chip by using a photon integration technology. According to the invention, the consistency and stability between optical paths can be well ensured by adopting the integrated photon technology, and the coherence between the optical paths can be ensured without adopting polarization multiplexing and other modes for a separation system, so that the system structure is simplified, the size, weight and power consumption of the system can be obviously reduced, and the stability of the system is improved. By adopting a parallel modulation mixing receiving structure, the conversion efficiency and linearity of the system can be improved. Meanwhile, the asymmetric Mach-Zehnder modulator is adopted to change the corresponding