CPC G01P 1/006 (2013.01) [G01P 3/00 (2013.01); G01P 15/18 (2013.01)] | 5 Claims |
1. An inertial measurement unit comprising:
an inertial sensor that outputs inertial information;
a storage portion that stores a plurality of correction parameters related to a range of values of the inertial information;
a parameter control portion that selects a selection correction parameter from the plurality of correction parameters;
a correction calculation portion that corrects the inertial information using the selection correction parameter; and
a communication portion, wherein the parameter control portion selects at least two correction parameters as the selection correction parameter, multiplies the selected correction parameters by a weighting coefficient, and adds corresponding results, based on external information from the communication portion, wherein the external information includes at least one of an acceleration pulse signal of a moving object, a pulse per second signal, and a vehicle speed pulse signal obtained by measuring a speed of the moving object.
|