Frequency offset calibration system and method

• Main Authors: HUANG HONGJIE, WEI HUAMING
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; WIRELESS COMMUNICATIONS NETWORKS

The invention provides a frequency offset calibration system and method. The method is applied to a system comprising a calibrated radio frequency module, a standard radio frequency module and an upper computer. The upper computer is coupled with the calibrated radio frequency module and is used for sending a first control instruction to the calibrated radio frequency module, and the first control instruction is used for controlling the calibrated radio frequency module to receive a first no-load fundamental wave signal sent by the standard radio frequency module; the calibrated radio frequency module is used for receiving a first no-load fundamental wave signal sent by the standard radio frequency module according to the first control instruction, determining the frequency of the first no-load fundamental wave signal, and according to the difference value between the frequency of the calibrated radio frequency module and the frequency of the first no-load fundamental wave signal, performing frequency calibra