2005•Telecommunication EngineeringRequires access

A Method of Inserting Spread Spectrum Watermarking into Spread Spectrum Signal

HE Shi-biao, Shizhong Yang

Abstract

A new method based on Multi-code Direct Sequence Spread Spectrum(MC-DSSS)technology is proposed to insert a spread spectrum watermarking into a spread spectrum communication signal?In this method,the spread spectrum signal plus spread spectrum watermarking are transmitted into channel,but their spread codes are orthogonal?The theoretical analysis and simulation indicate that there are many advantages in this watermarking,such as transparency,reliability,robustness and anti-jamming.

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Available abstract

Key concepts: Direct-sequence spread spectrum, Spread spectrum, Digital watermarking, Chirp spread spectrum, Jamming, Robustness (evolution), Computer science, SIGNAL (programming language)