Wide Area Augmentation of the Global Positioning System Jul 1, 1996· Enge P , Walter T , Pullen S Changdon Kee , Chao Y , Tsai Y. · 0 min read DOI Last updated on Jul 1, 1996 Authors Changdon Kee Professor ← 미래의 항법장치: 광역위성 항법장치(WAAS) Nov 1, 1996 Detection and Estimation of Multipath Error in GPS Pseudorange Measurements using Signal-To-Noise Ratio in a Stationary Single-Frequency Receiver Jun 1, 1996 →