The use of a base station or other Earth-bound source to transmit a correction signal to a GPS receiver refers to
A)CORS.
B)DGPS.
C)WAAS.
D)MSAS.

Question

Quizplus · Accepted Answer

The use of a base station or other Earth-bound source to transmit a correction signal to a GPS receiver is known as Differential Global Positioning System (DGPS). The other choices are not relevant to this particular technology. CORS (Continuously Operating Reference Station) is a network of GPS stations that provides real-time positioning data for various applications. WAAS (Wide Area Augmentation System) is a satellite-based system that helps improve GPS accuracy through additional signals from ground-based stations. MSAS (Multi-functional Satellite Augmentation System) is a similar satellite-based system developed by Japan for use in that country and nearby areas.

The Use of a Base Station or Other Earth-Bound Source