Analysis On The Output Sequences Of Clock Control Generator And Application In Spread Spectrum Communication

Based on the model of the KM₁M₂ generator,additive combined generator,by using the algebra,measurable theory,logical function and random process comprehensively,this paper study the algebraic properties of the output sequences of KM₁M₂ generator,additive combined generator,including period,linear complexities,correlation,correlation-immunity.Research shows that the output sequences of km₁m₂ generator,additive combined generator have long period,large linear complexities,correlation-immunity.The output sequences of them also have strong auto correlation and weak cross correlation by computer,so when the code length is fixed,they can afford to more code word.In terms of the good cryptographical characteristics of them,and hardware is easy to come true,the author studies their applications in spread spectrum system,so the paper researches auto correlation function and power spectral density of spread spectrum wave made by the output sequences of KM₁M₂ generator,additive combined generator,and studies the error rate generated by the direct sequence spread spectrum communication system when the output sequences of generator acts as spread spectrum code in the condition of single-frequency sinusoidal interference,explore the system can resist stationary distribution when the output sequences of additive combined generator are used as spread spectrum code,Research shows that it is feasible to apply them in spread spectrum communication system.The probability model of the KM₁M₂ generator is also constructed when the output sequences of linear feedback shift register not always submit uniform distribution by using the probability theory,the one dimension distribution,A:-step transition probability, finite dimension joint distribution,figure character of the output sequence of them is discussed, we also construct the probability model of additive,multiplicative combined generator when the output sequences of linear feedback shift register not always submit uniform distribution, and the one dimension distribution,k -step transition probability,figure character of the output sequence of them is discussed.The results show that they are significant promotion to the output sequences of KM₁M₂ generator,additive,multiplicative combined generator when the output sequences of linear feedback shift register submit uniform distribution.