CAJ | 학술논문

在紫外光通信中采用了纠错性能优异的Turbo码,用gamma-gamma湍流模型仿真信道中的大气湍流,考虑紫外光通信常用的P P M(脉冲位置调制)方式以及湍流的影响,在紫外信道中,分析了在相同的条件下折射率结构常数和波长等因素的变化给Turbo码性能带来的影响。仿真结果表明：在相同的条件下,折射率结构常数越小,波长越长,Turbo码的性能越好,该结论可为实际实现提供理论参考。
재자외광통신중채용료규착성능우이적Turbo마,용gamma-gamma단류모형방진신도중적대기단류,고필자외광통신상용적P P M(맥충위치조제)방식이급단류적영향,재자외신도중,분석료재상동적조건하절사솔결구상수화파장등인소적변화급Turbo마성능대래적영향。방진결과표명：재상동적조건하,절사솔결구상수월소,파장월장,Turbo마적성능월호,해결론가위실제실현제공이론삼고。
This paper adopts Turbo code that has excellent error-correction performance in UV communications and simulates the atmospheric turbulences in the channels by using a gamma-gamma turbulence model.Considering the Pulse Position Modu-lation (PPM)mode commonly used in UV communications and the effects of turbulence,it analyzes the variations of such fac-tors as the refractive rate structural constant and wavelength on Turbo code performances.Simulation results reveal that under the same conditions,the smaller the structural constant and the longer the wavelength,the better performance the Turbo code will achieve.This conclusion provides a theoretical reference for its practical implementation.