CAJ | 학술논문

在分析扩频通信系统和turbo码编译原理的基础上，利用MATLAB软件的Simulink模块库构建了基于turbo码的扩频通信系统仿真模型．在一定的仿真条件下，对发送信息序列的时间波形以及误码率进行了仿真．仿真结果表明，在无噪声时，接收端可以准确的恢复出发送的信息序列；在有噪声时，恢复出的信息序列具有较低的误码率，这说明基于turbo码的扩频通信系统对噪声有很好的抑制效果，达到了预期目的．
재분석확빈통신계통화turbo마편역원리적기출상，이용MATLAB연건적Simulink모괴고구건료기우turbo마적확빈통신계통방진모형．재일정적방진조건하，대발송신식서렬적시간파형이급오마솔진행료방진．방진결과표명，재무조성시，접수단가이준학적회복출발송적신식서렬；재유조성시，회복출적신식서렬구유교저적오마솔，저설명기우turbo마적확빈통신계통대조성유흔호적억제효과，체도료예기목적．
On the basis of the analysis of the spread spectrum communication system and the compile principle of turbo codes, Simulink block library of MATLAB software are used to build the spread spectrum communication system simulation model based on turbo codes. The time profile and the error rate of the transmitted information se- quence are emulated under certain simulation conditions. Simulation results show： while there is no noise, the re- ceiver can accurately recover the received information sequence; while there are noises, the recovered information sequence has the lower error rate, which shows the spread spectrum communication system based on turbo codes has the good effect of noise suppression and achieves the desired purpose.