Heading machine pose parameter detection method based on passive RFID

The invention discloses a heading machine pose parameter detection method based on passive RFID, and belongs to the field of heading machine pose identification. The method comprises the following steps: firstly, establishing a harmonic backscattering anti-interference model by utilizing a passive broadband harmonic tag so as to eliminate strong self-interference and dense multipath interference leaked by a transmitting antenna; optimizing and selecting an optimal frequency combination which enables the phase error tolerance to be maximum by utilizing a genetic algorithm; then solving the problem of fuzzy distance of the tunneling working face by using a coherent emission broadband multi-frequency continuous wave phase difference distance measurement method; obtaining high-precision positioning of the passive tag on the machine by adopting a geometric positioning algorithm; and finally establishing a heading machine body pose model and realizing heading machine body pose parameter detection according to the t