On locking conditions in m-sequence generators for the use in digital watermarking

Author

Ahmad, A. ; Al-Mashari, A. ; Al-Lawati, A.M.J.

Author_Institution

Dept. of Electr. & Comput. Eng., Sultan Qaboos Univ., Muscat, Oman

fYear

2009

fDate

14-15 Dec. 2009

Firstpage

1

Lastpage

5

Abstract

The maximal length pseudo random binary sequence is known as m-sequence. The m-sequence of domain {0, 1} can be represented in bipolar form of sequence in domain {-1, 1}. The m-sequences are used for watermarking because of their very good correlation properties, noise like characteristics and resistance to interference. This paper investigates a new locking condition in the operations of an m-sequence generator. Through this finding it is revealed that an LFSR structure may turn into locking state due to particular seed selection other than the all zeros or all ones.

Keywords

binary sequences; interference (signal); random sequences; watermarking; LFSR structure; digital watermarking; interference resistance; locking conditions; m-sequence generators; pseudo random binary sequence; Binary sequences; Circuit testing; Computer science; Educational institutions; Output feedback; Polynomials; Shift registers; Signal processing algorithms; Very large scale integration; Watermarking; LFSR; digital watermarking; feedback; m-sequence; seed;

fLanguage

English

Publisher

ieee

Conference_Titel

Methods and Models in Computer Science, 2009. ICM2CS 2009. Proceeding of International Conference on

Conference_Location

Delhi

Print_ISBN

978-1-4244-5051-0

Type

conf

DOI

10.1109/ICM2CS.2009.5397982

Filename

5397982