differencerateofchange.ThenthetargetcanbeIocatedwithhighspeedandprecision.WhenfIyingpostureoftheobserveris changed,thetargetcanbeIocatedinthenewcoordinatesystemaccordingtomeasurementdata.AnditspositionintheoriginaIcoordi- natesystemcanbeobtainedthroughtherotatingmatrixbetweentwocoordinatesystems.ReIatedIocatingexpressions...