Simulated constellation

Simulation of GPS satellite constellation (GeoGeBra modeling)

Title: GPS satellite constellation simulation (GeoGeBra modeling)

Date: Wednesday, March 25th, 2020 1:08:3 1.02

Tags: GeoBra, Analog, GNSS

Category: GNSS

By Tamkery

The GPS space constellation has six elliptical orbits, and each orbit has four satellites, totaling 24 satellites.

Extract mathematical concepts:

1. Draw an ellipse on the XY plane. Draw an ellipse with two focuses and an arbitrary ellipse point at three points.

GLONSS space constellation information:

Galileo space constellation information:

Beidou space constellation information:

Japanese Quasi-Zenith Satellite (Regional Enhanced Attribute, Non-Global Navigation Satellite System)

This paper only serves as a simple modeling guide for GNSS, and discusses the model state in an idealized state. Using Matlab to simulate requires a certain theoretical learning cost, so in order to simplify and embody the mathematical ideas behind modeling, the contents are mostly realized from the perspective of mathematical geometric transformation (involving ellipse drawing and rotation transformation), and these commands have been integrated in Geobra.