Signal processing circuits and methods

A signal processing method, comprising:

• acquiring, by at least two signal acquisition circuits, at least two-channel target signals;
• controlling, by a switch circuit, conduction between the at least two signal acquisition circuits and the analog circuit, so that the target signal collected by a part of the at least two signal acquisition circuits is transmitted to the analog circuit at the same time;
• processing, by an analog circuit, the received target signal;
• and
• receiving, by the analog circuit, the processed target signal, and sampling, by a control circuit, the processed target signal, wherein each of the at least two target signals includes a target frequency, and a sampling frequency of each of the processed target signal by the control circuit is not less than twice of the target frequency.

A non-transitory computer-readable storage medium storing a set of instructions, when executed by at least one processor, causing the at least one processor to execute a signal processing method, the method comprising

• acquiring, by at least two signal acquisition circuits, at least two-channel target signals;
• controlling, by a switch circuit, conduction between the at least two signal acquisition circuits and the analog circuit, so that the target signal collected by a part of the at least two signal acquisition circuits is transmitted to the analog circuit at the same time;
• processing, by an analog circuit, the received target signal;
• and
• receiving, by the analog circuit, the processed target signal, and sampling, by a control circuit, the processed target signal, wherein each of the at least two target signals includes a target frequency, and a sampling frequency of each of the processed target signal by the control circuit is not less than twice of the target frequency.