@class RTFixedSizeQueue; @interface RTLocationSmootherKF : NSObject { RTFixedSizeQueue *states; double refLat; double refLon; double refAlt; } - (id)init; - (void).cxx_destruct; - (id)smoothLocations:(id)a0; - (id)buildLocationWithEstimationState:(id)a0 originalLocation:(id)a1; - (double)getRefAlt:(id)a0; @end