Journal
PROCEEDINGS OF THE IEEE
Volume 99, Issue 5, Pages 881-888Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPROC.2010.2084550
Keywords
Data processing; discrete Fourier transforms; radio astronomy; signal processing
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Funding
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena
- National Aeronautics and Space Administration (NASA)
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In the postprocessing of open-loop radio science receiver (RSR) data, the frequency of a received signal is reconstructed and its amplitude estimated. Three types of algorithms can be used for the signal detection: a digital phase lock loop (PLL), fast Fourier transform (FFT) alone, or FTT with an optimization. One optimization, referred to as spectral analysis, is compared with the PLL and FFT detection methods especially for the case of signal with high-frequency dynamics. The reconstruction procedure is an important first step of processing radio science experimental data since its accuracy influences the resulting science observations. The comparisons deduce that the spectral analysis is superior for the cases of high dynamics signals.
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