在无线光通信系统中 ,光强闪烁和大气衰减等因素将使通信系统产生长突发误码 ,结合Turbo码 ,建议并分析了两种差错控制方案中时间参数的特性。对于Turbo码 +信道交织的差错控制方案 ,仿真分析了不同信道交织深度下的无线光通信系统性能 ,给出了特性曲线。对于Turbo码 +反馈重发 (ARQ)的方案 ,仿真结果表明反馈环路延迟时间的变化不影响系统的平均吞吐量 ,但是将影响平均数据传输延迟和重发次数的概率分布 In the wireless optical communication system, the flashing of light intensity and atmospheric attenuation will cause long burst errors in the communication system. Combined with Turbo codes, the characteristics of the time parameters in the two error control schemes are proposed and analyzed. For Turbo code + channel interleaving error control scheme, the performance of wireless optical communication system with different channel interleaving depth is simulated and the characteristic curve is given. For Turbo Code + ARQ scheme, the simulation results show that the change of feedback loop delay time does not affect the average throughput of the system, but will affect the average data transmission delay and the probability distribution of retransmission times