Implementação e aprimoramento de um sistema de telemedidas para veículos lançadores de satélites

Abstract

This master degree thesis has as main goal change the Satellite Launching Vehicle analog acquisition system and optimize the data distribution of a hundred analog signals, for example temperature, pressure, vibration, sound waves and other digital states, according to their frequencies. The acquisition and digital processing of low and high frequency signal aiming further transmission by the same telemetry radio link have as consequence a large quantity of low frequency signal samples and a small quantity for the high frequency signal samples. The signal distribution optimization allows to join all high frequency signals at only one low cost onboard data acquisition system known as multifunction card. This card is programmed to acquire all high frequency signals, for data processing and encoding in Pulse Code Modulation (PCM). This single low cost onboard space qualified microcontrolled card appears as an option for acquisitions and data processing of high frequency signals with similar performance as commercial telemetry systems.