Improved spectral performance of Knuth Codes
Emma Frontana, Craig Jamieson, I.J. Fair · 2008
This paper proposes an extension of Knuthpsilas complementation method for constructing balanced codewords. By placing the encoding process in the context of a multimode code, we propose generating a number of alternative balanced words using Knuthpsilas method to represent each source word, and selecting the word with minimum squared weight (MSW) as the codeword in order to achieve improved spectral performance. Spectral results, which demonstrate increased suppression of low frequency components by up to 3 dB through the use of this approach, are presented.