Method and device for estimating carrier frequency offset, and computer readable storage medium

A computer-readable storage medium having computer instructions stored therein, the computer-readable storage medium is a non-volatile storage medium or a non-transitory storage medium, wherein once the computer instructions are executed by a processor, cause the processor to:

• determine a target area where a phase discrimination signal is located, wherein the target area is one of N numbers of candidate areas, the N numbers of candidate areas correspond to different value ranges, and an union range of the N numbers of candidate areas is [π, −π], wherein N≥2;
• determine a first estimation value of a direct current component corresponding to the phase discrimination signal based on the target area;
• and
• perform a carrier frequency offset compensation on the phase discrimination signal based on the first estimation value of the direct current component.

A device for estimating a carrier frequency offset comprising a memory and a processor, wherein the memory has computer instructions stored therein, once the processor executes the computer instructions, cause the processor to:

• determine a target area where a phase discrimination signal is located, wherein the target area is one of N numbers of candidate areas, the N numbers of candidate areas correspond to different value ranges, and an union range of the N numbers of candidate areas is [π, −π], wherein N≥2;
• determine a first estimation value of a direct current component corresponding to the phase discrimination signal based on the target area;
• and
• perform a carrier frequency offset compensation on the phase discrimination signal based on the first estimation value of the direct current component.