Effect of Various Interferences in Spread Spectrum Communication System.

A Chaos-based Spread Spectrum Communication System

We describe the design and CMOS implementation of a baseband spread-spectrum communication system using chaotic signals for spreading digital data. The communication system uses a new chaotic modulation scheme called M-DCSK (Modified Differential Chaos Shift Keying). The M-DCSK scheme and its characteristics are analyzed for single user and multi user applications. Results from a VLSI implement...

Design of Spread - Spectrum Communication System Based on FPGA

Spread spectrum communication technology, compared with the conventional communication technology, has many characteristics, such as a low interception rate, strong anti-noise performance, noise immunity, information hiding and multiple access communication. Widely used in military communication and civil communication at present, it is the core technology in the third generation mobile communi...

Principles of Spread-spectrum Communication Systems Principles of Spread-spectrum Communication Systems

A Chaos-Based Secure Direct-Sequence/Spread-Spectrum Communication System

and Applied Analysis 3 1 1 2 2 Integrator Decision device

Spread spectrum communication system with chaotic frequency modulation.

A new spread spectrum communication system utilizing chaotic frequency modulation of sinusoidal signals is discussed. A single phase lock loop (PLL) system in the receiver is used both to synchronize the local chaotic oscillator and to recover the information signal. We study the dynamics of the synchronization process, stability of the PLL system, and evaluate the bit-error-rate performance of...