公开(公告)号：US11885869B2

公开(公告)日：2024-01-30

申请号：US17256851

申请日：2019-06-06

申请人： NUCTECH COMPANY LIMITED

发明人： Shangmin Sun ,  Yu Hu ,  Sheng Yao ,  Tao Wang ,  Xibin Yin

IPC分类号： G01S13/38 ,  G01S7/40 ,  G01S13/34 ,  G05B1/00

CPC分类号： G01S13/38 ,  G01S7/4004 ,  G01S13/347 ,  G05B1/00

摘要： The present disclosure provides a smart automatic frequency control (AFC) apparatus, including: a phase shift module, connected to a first signal input terminal and configured to: receive an incident wave from the first signal input terminal, perform a phase shift on the incident wave according to a phase shift parameter so as to generate a phase-shifted signal, and output the phase-shifted signal to a phase detection module; and the phase detection module, connected to the phase shift module and a second signal input terminal and configured to: receive a reflected wave from the second signal input terminal, perform a phase detection on the phase-shifted signal and the reflected wave so as to generate a phase difference signal, and output the phase difference signal via a control interface.