International Telemetering Conference Proceedings / October 30-November 02, 1995 / Riviera Hotel, Las Vegas, Nevada / Measurement of vibration and acoustic signals at various locations in the launch
vehicle is important to establish the vibration and acoustic environment encountered
by the launch vehicle during flight. The vibration and acoustic signals are wideband
and require very large telemetry bandwidth if directly transmitted to ground. The DSP
based Signal Processing Unit is designed to measure and analyse acoustic and
vibration signals onboard the launch vehicle and transmit the computed spectrum to
ground through centralised baseband telemetry system. The analysis techniques
employed are power spectral density (PSD) computations using Fast Fourier
Transform (FFT) and 1/3rd octave analysis using digital Infinite Impulse Response
(IIR) filters. The programmability of all analysis parameters is achieved using
EEPROM. This paper discusses the details of measurement and analysis techniques,
design philosophy, tools used and implementation schemes. The paper also presents
the performance results of flight models.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/608530 |
| Date | 11 1900 |
| Creators | T.N., Santhosh Kumar, A.K., Abdul Samad, K.M., Sarojini |
| Contributors | Indian Space Research Organisation |
| Publisher | International Foundation for Telemetering |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Proceedings |
| Rights | Copyright © International Foundation for Telemetering |
| Relation | http://www.telemetry.org/ |
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