METHOD FOR IMPLEMENTING AN INDOOR NAVIGATION, CAPABLE OF ACCURATELY SUPPLYING POSITION INFORMATION IN A GPS SHADOW AREA USING A GPS GENERATOR

摘要

PURPOSE: A method for implementing an indoor navigation is provided to reduce an error of a terminal without the influence of an obstacle by generating a GPS signal identical to a satellite signal indoors by installing a GPS generator with a specific space.;CONSTITUTION: A satellite signal received from a satellite antennas is received through a GPS(Global Positioning System) satellite signal receiver(S20-S21). The signal is amplified through a line-amplifier and a bias-T and a time synchronization signal is transmitted to a GPS generator(S22-S23). The clock of the GPS generator is synchronized by extracting the time information from the GPS signal in a clock synchronization processor of the GPS generator(S24). A navigation message is generated through a latitude, longitude, and an altitude(S25). A coordinate value of a plurality of pseudo satellites is generated in a micro processor(S26-S27). The signal of the signal process is controlled and a software program embedded in a memory module processor is executed(S28). Four satellite signals applied with the measurement value on the corresponding point are generated based on the latitude, longitude, and altitude and are transmitted to a GPS transmission antenna(S29-S30).;COPYRIGHT KIPO 2010