generate_ekf_cov(list()) :: tuple()
generate_q(list()) :: tuple()
generate_r_gps(list()) :: tuple()
generate_r_heading(list()) :: tuple()
position_rrm(struct()) :: struct()
position_rrm_velocity_mps(struct()) :: tuple()
to_2d_list(list(), integer(), integer()) :: list()
velocity_mps(struct()) :: map()