The Meaning of Error in a Short Base Underwater Navigation System

摘要

A tutorial report is presented for those who have not had the time or reference material necessary to think out the meaning of error associated with a short based underwater navigation system similar to the one mounted in the Naval Research Laboratory ship, USNS MIZAR. In particular, a mathematical model is presented, sources of systematic error and random error are suggested, the meaning of position error associated with two crossed lines of position is discussed, a calculation of random error is made, and a comparison to random error measured by USNS MIZAR in two sea operations is presented. (Author)