Research and Application of Connected Interferometry Measurement Signal Processing Method

Interferometry measurement technology is an important method for obtaining high precision navigation information in deep space exploration. This paper describes the principle of connected interferometry measurement and the signal processing method using bandwidth synthesis technology which is utilized for accurately extracting delay related to spacecraft angle location information. Meanwhile, a connected interferometry measurement experiment system is established to sample real geosychronous satellite signal for interferometry measurement analysis in Beijing Aerospace Control Center. Finally, clear fringes and high precision delay are obtained by simulation and actual experiments, ns precision is reached, these results confirm the perfect performance of connected interferometry measurement signal processing method.