Frequency offset estimation method and device based on HPLC (High Performance Liquid Chromatography) dual-mode wireless system and electronic equipment

The embodiment of the invention discloses a frequency offset estimation method and device based on an HPLC (High Performance Liquid Chromatography) dual-mode wireless system and electronic equipment. According to the embodiment of the invention, the method comprises the steps: obtaining a target time domain signal of a short training domain STF; determining decimal frequency offset according to the target time domain signal; within a cyclic prefix (CP) time period of a long training domain (LTF), compensating the long training domain (LTF) according to the decimal frequency offset, obtaining two pieces of LTF time domain data in the LTF after the decimal frequency offset compensation, and obtaining a complete LTF OFDM symbol through FFT of each piece of LTF time domain data; determining integer frequency offset according to the two pieces of LTF time domain data; and determining a target frequency offset according to the decimal frequency offset and the integer frequency offset. Through the above method, the