Some considerations for different time-domain signal processing of pulse compression radar
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Abstract
Radar technology has for a long time used various systems that allow detection under high-resolution conditions, while emitting at the same time low peak power. Among these systems, transmitted pulse encoding by means of biphasic codes has been used for the advanced ionospheric sounder that was developed by the AIS-INGV ionosonde. In the receiving process, suitable decoding of the signal must be accomplished. This can be achieved in both the time and the frequency domains. Focusing on the time domain, different approaches are possible. In this study, two of these approaches have been compared, using data acquired by the AIS-INGV and processed by means of software tools (mainly Mathcad©). The analysis reveals the differences under both noiseless and noisy conditions, although this does not allow the conclusive establishment as to which method is better, as each of them has benefits and drawbacks.
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Cabrera, M. A., Zuccheretti, E., Ezquer, R. G., Sciacca, U., Lopez, J. M., Molina, M. G. and Baskaradas, J. A. (2011) “Some considerations for different time-domain signal processing of pulse compression radar”, Annals of Geophysics, 53(5-6), pp. 1–11. doi: 10.4401/ag-4758.
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