A method of operating a rotorcraft , the method comprising: receiving a first sensor value comprising a first position coordinate of the rotorcraft, the first position coordinate comprising a first coarse resolution portion and a first fine resolution portion, wherein: the first coarse resolution portion comprises a first coarse resolution position word ; and the first fine resolution portion comprises a first fine resolution position word ; receiving, asynchronously to the first sensor value, a second sensor value comprising a second position coordinate of the rotorcraft, the second position coordinate comprising a second coarse resolution portion and a second fine resolution portion, wherein: the second coarse resolution portion comprises a second coarse resolution position word; and the second fine resolution portion comprises a second fine resolution position word; and determining that the second coarse resolution portion corresponds with the second fine resolution portion when a sum of a difference between the first and second presently and previously received coarse resolution position words and difference between the presently and previously received first and second fine resolution position words is within a first threshold, wherein the first threshold is based on a velocity of the rotorcraft. receiving a first sensor value comprising a first position coordinate of the rotorcraft, the first position coordinate comprising a first coarse resolution portion and a first fine resolution portion, wherein: the first coarse resolution portion comprises a first coarse resolution position word ; and the first fine resolution portion comprises a first fine resolution position word ; the first coarse resolution portion comprises a first coarse resolution position word ; and the first fine resolution portion comprises a first fine resolution position word ; receiving, asynchronously to the first sensor value, a second sensor value comprising a second position coordinate of the rotorcraft, the second position coordinate comprising a second coarse resolution portion and a second fine resolution portion, wherein: the second coarse resolution portion comprises a second coarse resolution position word; and the second fine resolution portion comprises a second fine resolution position word; and determining that the second coarse resolution portion corresponds with the second fine resolution portion when a sum of a difference between the first and second presently and previously received coarse resolution position words and difference between the presently and previously received first and second fine resolution position words is within a first threshold, wherein the first threshold is based on a velocity of the rotorcraft. the second coarse resolution portion comprises a second coarse resolution position word; and the second fine resolution portion comprises a second fine resolution position word; and determining that the second coarse resolution portion corresponds with the second fine resolution portion when a sum of a difference between the first and second presently and previously received coarse resolution position words and difference between the presently and previously received first and second fine resolution position words is within a first threshold, wherein the first threshold is based on a velocity of the rotorcraft. <EOS>