Fig. 1. Schematic of microwave photonics RF SCI system

Fig. 2. Impact of amplitude mismatch and delay mismatch on the cancellation depth

Fig. 3. Flow chart of feedback control for microwave photonics RF SIC system by FPGA

Fig. 4. Flow chart of cross-correlation and particle swarm optimization combining algorithm

Fig. 5. Schematic of vector coordinate rotation and solution searching

Fig. 6. Flow chart of particle swarm algorithm for microwave photonic RF self-interference cancellation

Fig. 7. Flow chart of microwave photonics RF SIC control algorithm

Fig. 8. Experimental structure of microwave photonics RF SIC system with feedback control

Fig. 9. The RF SIC depth versus the optimal attenuation and delay adjustment of microwave photonics RF SIC system

Fig. 10. Spectrum evaluation of RF self-interference signal with FPGA-based microwave photonic cancellation

Fig. 11. Spectrum of RF self-interference cancellation for the iterative criterion I

Fig. 12. Spectrum of RF self-interference cancellation for the iterative criterion II