Reading Assignment: GPS: a Guide to the Next Utility Pp. 2-37

NREM 446/546 Week 1, 2012 Reading assignment: GPS: A guide to the next Utility pp. 2-37, GIS Fundamentals: pp. 1-20 (Ch. 1), and Explore http://www.spaceandtech.com/spacedata/constellations/navstar-gps_consum.shtml http://www.spaceandtech.com/spacedata/constellations/glonass_consum.shtml

Material covered in this week contributes to the accomplishment of the following course goals: Goal 1: Demonstrate a basic understanding of the theory behind GPS and the reasons for its use

Information obtained from this week will help you understand basic principles associated with the theory and use of GPS and will lay the groundwork for data collection using a handheld GPS unit.

After studying class notes and reading assignments, participating in class discussions, and conducting lab. 1, you should be able to:

 Discuss the developmental history of GPS in the United States

 Demonstrate how the combination of time, speed of light, and known accurate locations of transmitting stations (GPS satellites) can be used to determine the position of a receiving station.

 Describe the three segments of the NAVSTAR system.

 Explain the following terms:  Ephemeris  Almanac

 List and describe the three possible methods of positioning using GPS

 Demonstrate the necessary initial setup of a Trimble GeoExplorerXT in preparation for field data collection.

 Use a GeoXT to determine your current position

 Justify the use of a GeoXT for data collection given the apparent accuracy you observe during the first lab period.

 Describe the error associated with interchanging NAD83 locations with NAD27 locations and vice versa. (Note, there are 4 possibilities here) o Read NAD27 from a map for navigation with a GPS set to NAD83 o Read NAD83 from a map for navigation with a GPS set to NAD27 o Collect NAD83 locations with GPS and plot to a NAD27 map D:\Docs\2018-04- 16\0157df969a9627c5fa7ab38c068e71fd.doc o Collect NAD27 locations with GPS and plot to a NAD83 map

D:\Docs\2018-04- 16\0157df969a9627c5fa7ab38c068e71fd.doc