论文标题
闪烁最小化与最佳梁的强度最大化
Scintillation Minimization versus Intensity Maximization in Optimal Beams
论文作者
论文摘要
在自由空间的光学通信和其他应用中，对于设计减少甚至最小闪烁的光束是理想的。但是，最大程度地减少闪烁的优化问题是具有挑战性的，很少发现最佳解决方案。在这里，我们研究了最小化闪烁并将其作为凸优化问题提出的一般优化问题。发现了一个分析溶液，并证明最小化闪烁的光束是不连贯的光（即在空间不相关）。此外，数值解决方案表明，梁最小化的闪烁在接收器处的强度非常低。为了抵消这种效果，我们研究了一种新的凸成本函数，可以平衡闪烁和强度。我们通过数值实验表明，此成本函数的最小化器减少了闪烁，同时保留了接收器处的强度水平明显更高。
In free-space optical communications and other applications, it is desirable to design optical beams that have reduced or even minimal scintillation. However, the optimization problem for minimizing scintillation is challenging, and few optimal solutions have been found. Here we investigate the general optimization problem of minimizing scintillation and formulate it as a convex optimization problem. An analytical solution is found and demonstrates that a beam that minimizes scintillation is incoherent light (i.e., spatially uncorrelated). Furthermore, numerical solutions show that beams minimizing scintillation give very low intensity at the receiver. To counteract this effect, we study a new convex cost function that balances both scintillation and intensity. We show through numerical experiments that the minimizers of this cost function reduce scintillation while preserving a significantly higher level of intensity at the receiver.
