Measuring method for carrier phase based on phase difference group processing

Accurate navigation orientation technique can be realized not only by the measurement of time delay in the transmission, but also by the analysis of periodicity phenomenon and phase relations between signals. This paper proposes a method of accurate navigation orientation technique which is based on dual-frequency signals group phase difference disposal technique by analyzing the carrier wave phase measurement. This method uses the inherent regularity of the carrier wave signal itself, the stability of the carrier wave signal and its device. On the basis of practical applications the method is put forward. The phase comparison between two frequency signals can be conducted on the same frequency even on the different frequencies. It can distinguish the minute changes like, some fractions of the signal period, of the phase difference. Because of the additional frequency difference between two compared carrier signals, and the regularity and periodicity of the phase difference change, the regularity of signal transmission change can be caught and processed. This method does not need additional information and other aid, but makes full use of the characteristics of the object itself, and combining with the practical application, a high reliability and high resolution solution with simplicity and effectiveness can be obtained. On basis of the analysis and experimental verification this method can provide a basis and reference for further in-depth research.