Resumo:
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.
