CAJ | 학술논문

为了分析卷积纠错编码与不同的交织方式相结合时直扩系统的性能,设计了一种基于卷积与交织相结合的纠错编码直扩通信系统,并利用Matlab/Simulink仿真平台建立了系统仿真模型,仿真分析了在高斯白噪声信道条件下,随机交织、矩阵交织加通用块交织2种交织方式分别与卷积编码相结合时的直扩系统性能。仿真结果表明,在高斯白噪声信道中,与未编码的直扩系统相比,所设计的采用卷积与2种交织相结合的编码直扩系统均能在信噪比高于-1.35 dB时获得更好的系统性能。
위료분석권적규착편마여불동적교직방식상결합시직확계통적성능,설계료일충기우권적여교직상결합적규착편마직확통신계통,병이용Matlab/Simulink방진평태건립료계통방진모형,방진분석료재고사백조성신도조건하,수궤교직、구진교직가통용괴교직2충교직방식분별여권적편마상결합시적직확계통성능。방진결과표명,재고사백조성신도중,여미편마적직확계통상비,소설계적채용권적여2충교직상결합적편마직확계통균능재신조비고우-1.35 dB시획득경호적계통성능。
To analyze the performance of direct sequence spread spectrum communication system when different kinds of interleaving methods are integrated with convolution coding,a convolution coding and interleaving based error correction coding DSSS communication system is designed,and the system model is built in the Matlab/Simulink platform.Random interleaving and Matrix interleaving combined with general block interleaving are considered respectively in the AWGN channel condition.The simulation results indicate that as compared with uncoded DSSS communication system,the performance of convolutionally coded DSSS communication system in conjunction with two different interleaving methods designed in this paper is better when signal noise ratio is-1.35 dB or more.