The Research On The PCSS Anti-jamming Performance And Mapping Method

The Parallel Combinatory Spread Spectrum Communication System (PCSS) is brought forward by the professor Jinkang Zhu based on the which has a higher information transmission efficiency and frequency bandwidth utility than general Spread Spectrum Communication System and M-ary spread spectrum communication. It has their excellent characters which are the anti-jamming performance and counter reconnaissance characteristics .the PCSS can be applied in burst communication or restricted frequency bandwidth communication. Because military correspondence request Concealment with high speed, the adoption of PCSS system is a good choice.The dissertation use theories analysis and computer simulation methods to analyze system error-ratio performance, frequency bandwidth efficiency, performance under some noises, data-mapping method and effect of PN codes.Theory analysis and computer simulation show that error rate of PCSS system is higher than the general Spread Spectrum Communication System, moreover hardware equipment is complex. But at large snr(signal noise ratio)it is viable and can achieve high efficiency to transmit information. PN sequences' correlation and amount have great effect to PCSS system. Through simulation the balance gold sequences and m-W sequences with long period are fit for PCSS system. The dissertation also introduces and analyses the data-sequence mapping arithmetic that are provided by former academician and propose a r-combinatory method which is an available and simple data-sequence mapping arithmetic which is simple and easy to come true by software. At last, the dissertation gives a design of PCSS signal resource which is based on the idea of software radio and gives the configuration in detail. The designed roof can achieve coding, spectrum spreading, modulation and other function which has great common utility.