摘要
对延迟随机并行梯度下降（D-SPGD）算法在远距离相干合成中倾斜控制进行系统研究，并与传统的随机并行梯度下降（SPGD）算法进行对比。理论研究结果表明，该算法可以明显降低传输延时对控制带宽的限制，显著提高远距离系统倾斜控制的效果，有望在远距离相干合成系统中得到实际应用。
The systematic research on tilt-tip control in coherent beam combining using delayed-stochastic parallel gradient descent （D-SPGD）algorithm is demonstrated. The control effects are compared with those of the traditional stochastic parallel gradient descent （SPGD） algorithm. The theoretical research results reveal that the D-SPGD algorithm can weaken the limitation of time-delay on control bandwidth, and improve the tilt-tip control effect of long-distance system obviously. D-SPGD algorithm is a promising method to be applied in practical system of coherent beam combining over long distance.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2013年第B12期25-32,共8页
Chinese Journal of Lasers
关键词
激光光学
相干合成
倾斜波前
延迟随机并行梯度下降算法
主动控制
laser optics
coherent beam combining
tilt-tip wavefront
delayed-stochastic parallel gradient descentalgorithm
active control
