摘要
本文研究了Exponentiated Weibull大气湍流下光链路误码性能,考虑大气湍流和指向误差对误码率的联合影响,利用Meijier'G函数推导出误码率的闭合表达式。根据误码率闭合表达式进行了仿真,分析了在不同大气湍流强度、PPM调制阶数、抖动标准差和波束宽度条件下,链路误码率随发射功率变化的关系。通过仿真分析证明:不同调制阶数,增大发射功率对链路误码性能的改善近乎相同;随着湍流强度、抖动标准差和波束宽度的增加,误码率增加。
To study the effects of the Exponentiated Weibull atmosphere turbulence and pointing errors on the bit error rate（ BER）, BER performance of the optical communication link is investigated. The closed-form expression of BER is derived based on a Meijer＇s G function. The relationship between the BER performance and the transmitting optical power under different parameters such as the atmosphere turbulence, PPM modulation order, the normalized jitter standard deviation and the normalized beam-width are analyzed by simulation. Simulation results show that the im- provement effect of different modulation orders and increasing transmitting power on BER is almost the same, and BER increases with the increase of turbulence intensity,the normalized jitter standard deviation and the normalized beamwidth.
出处
《激光与红外》
CAS
CSCD
北大核心
2018年第1期30-34,共5页
Laser & Infrared
作者简介
张韵（1995-），女，硕士研究生，主要从事航空光通信方向研究。E-mail：rhyme0115@126．com
