Complex sequences with low periodic correlations (Corresp.)

Construction of sequences with good correlation properties (Corresp.)

New techniques are presented for the design of sequences with good correlation properties. These methods can be used to construct sequences with out-of-phase periodic autocorrelation values of zero, sequences that are uncorrelated, and long impuke-equivalent sequences.

Optimal binary sequences for spread spectrum multiplexing (Corresp.)

A low-rate improvement on the Elias bound (Corresp.)

RU4LEtWH&!4sl-A'ERG RU4LEtWH&!4sl Fig. 1. Fig. 1. Entropy per cell as function of average run length. Entropy per cell as function of average run length. distributed: for tl 2 0 for tl < 0 where t, is the (continuous) run length. The average run length is f, = 6. (20) Now, suppose the continuous run length tl is quantized to obtain the discrete run length t : t = [t1] + 1 (21) where [tl] = larg...

Anatomo-electro-clinical correlations with video sequences

[Case records of Epileptic Disorders. Anatomo-electro-clinical correlations. Case 02-2008] We report the case of a young boy presenting with pre-frontal seizures including singing automatisms. There was no visible lesion on MRI, but following localisation using stereoelectroencephalography (SEEG), surgery revealed an underlying dysplastic lesion. [Published with video sequences]

Perfect periodic correlation sequences

Sequences with the property of perfect periodic autocorrelation are used in various fields such as communication and radar systems. Various methods were introduced to construct such sequences. Most of these methods concentrated on binary or N-phase sequences. In this paper two methods to construct general phase sequences are introduced. The methods are based upon the properties of the Fourier t...