GPS A Guide to the Next Utility Author:Hurn, Jeff A layman's guide, somewhat technical, of GPS. — Contents: What is GPS?; How GPS works in five easy steps;1)The basic idea-satellite ranging; 2)Measuring your distance from a satellite; 3)Getting perfect timing; 4)Knowing where a satellite is in space; 5)Ionospheric and atmospheric delays; SECTION TWO - ADDITIONAL READINGS 6)Pseudo-random code - t... more »he inside story; 7)Differential GPS - the ultimate in accuracy; 8)Selecting a GPS receiver; Glossary« less