Fangzheng Zhang, Bindong Gao, Shilong Pan. Broadband array radar based on microwave photonic frequency multiplication and de-chirp receiving (Invited)[J]. Infrared and Laser Engineering, 2021, 50(7): 20211051
- Infrared and Laser Engineering
- Vol. 50, Issue 7, 20211051 (2021)
Fig. 1. The broadband radar transceiver based on microwave photonic frequency multiplication and de-chirp receiving
Fig. 2. Principle of de-chirp processing
Fig. 3. (a) Picture showing the detection scenario; (b) Spectra of the de-chirped signal
Fig. 4. Setup of the phased array radar based on microwave photonic frequency multiplication and de-chirp receiving
Fig. 5. (a) Optical spectrum of the signal after DPMZM; (b) Spectra and waveform of the transmitted radar signal
Fig. 6. (a) Photograph of the phased array antennas and target; (b) Image constructed by digital beamforming
Fig. 7. Point spread functions along (a) range direction and (b) azimuth direction in the main beam
Fig. 8. Imaging result of multiple targets
Fig. 9. Equivalent MIMO array by the principle of the phase center approximation
Fig. 10. Schematic diagram of the microwave photonic MIMO radar based on wavelength division multiplexing
Fig. 11. Results of the target location with microwave photonic MIMO radar
Fig. 12. (a) Picture of the targets; (b) 2D imaging result of the targets
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