同时同频全双工技术可有效提升频谱利用效率，然而射频自干扰是该技术实际应用必须解决的首要问题。建立了微波光子射频干扰消除理论模型，分析了幅度失配与时延失配对干扰消除深度的影响，基于现场可编程门阵列（Field Programmable Gate Array，FPGA）进行了微波光子射频干扰消除控制算法研究，建立了互相关算法与粒子群算法相结合的快速寻优算法，提出了综合考虑微波光子功能单元调节精度与模数转换器采样精度的算法判据。实验测试了基于FPGA的微波光子射频干扰消除算法自适应控制功能，在中心频率2.4 GHz，带宽40 MHz条件下，干扰消除深度达到35 dB。

Radio frequency (RF) self-interference is a key issue for the application of in-band full-duplex communication in beyond fifth generation and sixth generation communications. Compared with electronic technology, photonic technology has the advantages of wide bandwidth and high tuning precision, exhibiting great potential to realize high interference cancellation depth over broad band. In this paper, a comprehensive overview of photonic enabled RF self-interference cancellation (SIC) is presented. The operation principle of photonic RF SIC is introduced, and the advances in implementing photonic RF SIC according to the realization mechanism of phase reversal are summarized. For further realistic applications, the multipath RF SIC and the integrated photonic RF SIC are also surveyed. Finally, the challenges and opportunities of photonic RF SIC technology are discussed.