ECE 6390 Radiolocation Scavenger Hunt - 3
Late for Dinner
Georgia Institute of Technology
Problem
The satellite subpoint coordinates and pseudo-ranges for the four GPS satellites whose signals are received by a positioning radio are shown in Table 1. All pseudo-ranges are given relative to the first satellite position.
| Table 1: Satellite Coordinates and Time | |||
|---|---|---|---|
| Sat 1 | Sat 2 | Sat 3 | |
| Longitude | -62.3256° | -85.2234° | -93.8388° |
| Latitude | -7.8520° | -45.1053° | -29.7834° |
| PR/c (s) | 0.000000000 s | -0.003817986 s | -0.004077077 s |
Other parameters given are:
- Mean earth radius: 6,380.00 Km
- GPS satellite altitude: 20,200.00 Km
- Speed of light (c ): 299,860.00 Km/s
Based on this data, the problem is to calculate the longitude, latitude, and altitude for the GPS receiver.
