Title :
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
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;
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
DOI :
10.1109/ICM2CS.2009.5397982
