To provide a
navigation system that can receive signals from Japanese
GPS satellites without requiring any special equipment, ensuring high accuracy, safety, and reliability. [Solution] The
system is characterized by comprising: a receiving function unit 320 that receives
signal information transmitted from Japanese
GPS satellites 200; a map
information storage function unit 330 that stores map information provided by the Geospatial Information Authority of Japan; a location information generation function unit 340 that generates predetermined location information by referring to the map information provided by the Geospatial Information Authority of Japan stored in the map
information storage function unit 330 and the
signal information received by the receiving function unit 320; a
reflection function unit 350 that reflects the predetermined location information generated by the location information generation function unit 340 onto arbitrary map information; and an output function unit 360 that displays or outputs the map information onto which the location information has been reflected by the
reflection function unit 350.