Some windows with very good sidelobe behavior

2013, a very good year

Pan African Medical Journal. 2014; 17:72 doi:10.11604/pamj.2014.17.72.3918 This article is available online at: http://www.panafrican-med-journal.com/content/article/17/72/full/ © Robert Davis et al. The Pan African Medical Journal ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), ...

Tailoring of Minimum Sidelobe Cosine-Sum Windows for High-Resolution Measurements

Cosine-sum windows with minimum sidelobes (minimum sidelobe windows) have good properties in terms of peak sidelobe level (PSL) and equivalent noise bandwidth (ENBW). But neighboring windows (the number of coefficients differ by one) have quite large PSL differences. If, for a special data analysis, the PSL of the window should not exceed a given value, then often windows with a much lower PSL ...

Construction of 1-Resilient Boolean Functions with Very Good Nonlinearity

In this paper we present a strategy to construct 1-resilient Boolean functions with very good nonlinearity and autocorrelation. Our strategy to construct a 1-resilient function is based on modifying a bent function, by toggling some of its output bits. Two natural questions that arise in this context are “at least how many bits and which bits in the output of a bent function need to be changed ...

Exotic Aquatic Plants-some Good; Some Bad

Good Codes Based on Very Sparse Matrices

Unfortunately this paper contains two errors with respect to Gallager's work on low density parity check codes. We gained the impression from the literature that \the sparse parity check codes studied by Gallager are bad," but this is in fact not the case. We also had the impression that Gallager's decoding algorithm was the same as Meier and Staaelbach's, and that our use of belief propagation...