Quasiadditional Binary Code Sequences
Abstract
Introduction: The quality of control and communication systems can be improved when using more advanced binary codes and signals on their basis. There are additional N-element binary sequences, which are couples of codes with antiphase values of an autocorrelated function in the area of side peaks. Their total autocorrelated function out of the maximum value is equal to zero; they are used to construct composite sequences by certain rules. The signals mentioned above are used in radar-tracking systems to increase their efficiency at distinction of objects against passive hindrances. However, the possibilities to create such sequences are significantly limited. RU-codes were proposed with which you can increase the amount of sequences with compensated side peaks of the total autocorrelated function, and also create a set of sequences various in length. These opportunities are realized by introducing quasiadditional sequences which provide not full, but partial compensation of the side peaks of the total autocorrelated function in some points. Purpose: The goal is to generalize and expand the ways to build binary sequences which can compensate the side peaks of the total autocorrelated function. Results: Rules are substantiated for the creation of composite sequences on the basis of quasiadditional codes; examples for N = 8; 25 are given. It is shown that the choice possibilities have expanded. The number of admissible values of the elements from sequences N has increased more than by 7 times, and the amount of various options has increased more than by 400 times. Practical relevance: The proposed sequences can be used in control systems and communication, as well as in radar-tracking systems where "packs" of impulses are formed and signals are accumulated.Published
2016-06-01
How to Cite
Cheprukov, Y., & Socolov, M. (2016). Quasiadditional Binary Code Sequences. Information and Control Systems, (3), 72-78. https://doi.org/10.15217/issn1684-8853.2016.3.72
Issue
Section
Information coding and transmission