Title The Interference Analysis Of Spread Spectrum
Communication System
Abstract
As the quality of people’s life is improved, the number of wireless users growthed very rapidly，and everywhere awash with the frequency of the electromagnetic wave, this has led to the poor communications environment even worse. Therefore, the communication system’s anti-jamming performance has increasingly become the focus of people’s attention. The spread spectrum communication system’s anti-jamming technology including two kinds, spread spectrum anti-jamming technology and non-spread spectrum anti-jamming technology. The two kinds technology both have widely used in today’s spread spectrum communication system. On the base of laid special stress on analyse the anti-jamming technology including spread spectrum anti-jamming technology, smart antenna technology, two-dimensional spread spectrum, and coding itselfly spread spectrum，I accomplished a simulation plan of the direct sequence spread spectrum communication system through the Matlab, simulated the realize process of the direct sequence spread spectrum communication system successfully. Through the analysis of the result of the simulation event, I get the conclusion that on the base of the same error rate, if you increase the spread spectrum gain, you can increase the signal-to-noise ratio on the output port, thus increased the anti-jamming ability.
