The Research Of DS/FH Hybrid Spread-Spectrum Communication System Base On Software Radio

Spread Spectrum and Software Radio is two technology of the fastest developing and the most promising. As Software Radio is applied to Spread Spectrum Communication System, it result in a great flexibility in the whole system. In addition, Hybrid Spread-Spectrum Communication System is propitious to enhance anti-jamming performance of the system that is make up of Direct Sequence (DS) and Frequency Hopping (FH), and it can satisfy the require of anti-jamming of systems. It concentrate their virtue and overcome shortage in single spread spectrum style.This paper discusses the aspect in detail. DS/FH Hybrid Spread-Spectrum Communication System base on Software Radio is researched in theory. Performance of the system is analyzed and evaluated in anti-jamming by software simulation. So it testify feasibility of the system.This paper also discusses Direct Digital Synthesis (DDS) and Digital Signal Process (DSP) in detail, because the application of digital technology is involved in Software Radio.