Pseudolite-based navigation system

The present invention relates to a pseudo-satellite-navigation system that can accurately calculate the navigation solution using a general commercial GNSS receiver and additional computing, and more specifically navigation transmitting from pseudolites to broadcast to simulate any GNSS satellite signal receiving a signal, and by integrating the geometry information of the placement information of the GNSS satellite simulation group and the actual pseudo-satellite, on the doctor satellite navigation system that can accurately calculate the navigation solution for the magnetic (自己) position of the mobile terminal will be. Of the doctor satellite navigation system according to an embodiment of the invention, a plurality of doctor transmits a navigation signal simulating the satellite signals transmitted from a plurality of GNSS satellites satellite; A reference station for transmitting a location information of said GNSS satellites and pseudolites; And of the doctor includes a portable terminal to calculate a navigation solution for the self location based on the signals received from the reference station and a satellite, said portable terminal, in which the GNSS satellite originating from the reference station and pseudolites communication module to receive the location information; A receiver that receives a GPS signal from the satellite pseudo calculating the navigation solution based on the navigation signal; And a computing unit for calculating a final navigation solution to incorporate the location information of a navigation solution and to the GNSS satellites and pseudolites calculated by the receiver.