SATELLITE SIGNAL TRACKING FILTER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a satellite signal tracking filter device that can attain further improvement in positioning accuracy by an artificial satellite positioning system such as a global positioning system and the like, in particular, positioning accuracy when the global positioning system and a zenith satellite system are combined.SOLUTION: A positioning device 100 includes a tracking group part 200 that acquires an observation value error to be output from a correlator 210 receiving a base band signal and a noise level included in the base band signal via a noise measurement meter 30 measuring noise included in the base band signal. The tracking group part 200 includes an integrated tracking Kalman filter 220 for outputting an observation value and an error dispersion on the basis of the observation value error and the noise level.