Analysis of GPS antenna visibility for rocket using SDR

This paper discusses the quality of GPS antenna signals on the effect of rocket attitude using SDR (Software Defined Radio). The antenna is mounted on the surface of the rocket tube, where the rocket’s position is horizontal, vertical, and tilted. The quality of the GPS signal is determined by the number of satellites that can be detected and the received signal strength. The experimental results show that when the rocket is horizontal and the antenna is on the upper surface, the signal is strongest and the number of satellites detected is more than the other positions (>4 satellite). The signal is weakest when the rocket is horizontal and the antenna position is on the lower surface so that the number of satellites detected is least.