2018 WSGC Elijah High Altitude Balloon Final Report

Orbital evolution of high-altitude balloon satellites

We investigate the motion of artificial satellites with large area-to-mass ratios in high-altitude low inclined orbits, perturbed simultaneously by solar radiation pressure andEarth’s oblateness. Our study is based on recent theoretical advances in circumplanetary dust dynamics (Hamilton & Krivov 1996). Applying these methods to the motion of balloon satellites, we write down and analyze the or...

Implementation of Solar Tracking Onboard a High-Altitude Balloon Platform

The HELIOS program is a series of four solar tracking missions with the goal to demonstrate the feasibility of solar tracking on a high altitude balloon platform while maintaining a low mission cost. For this purpose, a tracking system was developed that could be accurate, simple, and cost efficient. This paper documents the tracking system utilized by HELIOS III and IV both physically and algo...

High - Resolution Ozone Imager ( HIROIG ) Final Report

High - Dynamic GPS Tracking Final Report

This report presents the results of comparing four different frequency estimation schemes in the presence of high dynamics at low carrier-to-noise ratios. The comparison is based on measured data from a hardware demonstration. The tested algorithms include a digital phase-locked loop, a cross-product automatic frequency tracking loop, an extended Kalman filter, and finally, an FFT-aided cross-p...

Document Title : GIAVAP – final report final PROJECT FINAL REPORT