A users position solution with a 1 degree error in his longi

A user\'s position solution with a 1- degree error in his longitude measurement translates to the same distance at any point in the world. Each GPS satellite broadcasts its own ephemeris data parameters along with the almanac parameters for all satellites in the GPS satellite constellation. Errors due to the ionosphere, troposphere, and multi path are correlated amongst the reference station and the rover station in differential GPS applications. GPS consists of three main segments; Space segment, Control Segment, and User Segment. The troposphere can be corrected by making simultaneous carrier-phase measurements on multiple frequencies. The GPS receiver\'s clock offset from GPS system time can be corrected by implementing the clock correction algorithm contained in the 50 bits per second navigation data. Two GPS receivers are connected to a single antenna that splits its received signal into two separate paths. Path 1 and Path 2 have cables of length 100 meters and 2 meters, respectively. The three-dimensional position estimates for each of the GPS receivers in this scenario would be identical. The GPS satellite constellation is comprised of four orbital planes. Each orbital plane is inclined at 55 degree s relative to the equatorial plane. Civil users of GPS have access to the ranging information from the L1 and L2 portions of the GPS signal.

Solution

I

true

ii

true

iii

false

iv

True

v

false