Book ChapterDOI
Channel Power Estimation for DVBRCS to DVBS2 Onboard DSP Payload
Krishna K. Wadiwala,Neeraj Mishra,Deepak Mishra,Hetal Patel +3 more
- pp 161-172
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TLDR
A comparison of the parametric and nonparametric approaches is done to find the best suitable algorithm for onboard application and result of the performance of the selected periodogram method is reported under noisy and no noise condition.Abstract:
In multicarrier scenarios it is important to maintain the signals power in the specified dynamic range for the QOS. Further in Digital Video Broadcasting-S2 (DVBS2) the variable coding and modulations are selected based on the individual channel power. The paper describes the power estimation algorithm used for monitoring of up linking signal power for onboard satellite payload under such scenarios. In this paper a comparison of the parametric and nonparametric approaches is done to find the best suitable algorithm for onboard application. The performance of each algorithm is verified and compared. The periodogram method is finalize due to low complexity. Finally, result of the performance of the selected periodogram method is reported under noisy and no noise condition.read more
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The use of fast Fourier transform for the estimation of power spectra: A method based on time averaging over short, modified periodograms
TL;DR: In this article, the use of the fast Fourier transform in power spectrum analysis is described, and the method involves sectioning the record and averaging modified periodograms of the sections.
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Statistical Digital Signal Processing and Modeling
TL;DR: The main thrust is to provide students with a solid understanding of a number of important and related advanced topics in digital signal processing such as Wiener filters, power spectrum estimation, signal modeling and adaptive filtering.
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On the investigation of hidden periodicities with application to a supposed 26 day period of meteorological phenomena
TL;DR: Most often, small periodic variations are hidden behind irregular fluctuations, and their investigation then becomes a matter of considerable difficulty.
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Smoothing Periodograms from Time-Series with Continuous Spectra
TL;DR: In this paper, the smoothing of periodograms obtained from autoregressive or other time-series with continuous spectra is equivalent to considering the first few sample autocorrelations.
Journal ArticleDOI
Adaptive Coding and Modulation for the DVB-S2 Standard Interactive Applications: Capacity Assessment and Key System Issues
Eric Alberty,S. Defever,Cyrille Moreau,R. De Gaudenzi,S. Ginesi,Rita Rinaldo,Gennaro Gallinaro,A. Vernucci +7 more
TL;DR: This article shows how the ACM introduction in the satellite downlink enables greatly enhanced system performance but also has a profound impact on the way the system and some of the key system components are designed.