公开(公告)号：US20030214645A1

公开(公告)日：2003-11-20

申请号：US10437053

申请日：2003-05-14

Applicant: Communications Research Lab. Indep. Admin. Inst.

Inventor： Moriya Nakamura ,  Makoto Akiba ,  Toshiaki Kuri ,  Naoki Ohtani

IPC: G01J001/00

CPC classification number: H04B10/1125

Abstract: A method of evaluating free-space optical propagation characteristics includes emitting a plurality of laser beams from a corresponding plurality of laser sources, receiving laser beams at different target points, and measuring the time-based spatial fluctuations between the laser beams thus received. The respective distances from the laser sources to each target point are used to normalize the time-based spatial fluctuations. The difference between the normalized spatial positions of the laser beams at the target points is derived and used to obtain the frequency spectrum of time-based fluctuations of the spatial positions.

Abstract translation: 评估自由空间光传播特性的方法包括从相应的多个激光源发射多个激光束，在不同的目标点处接收激光束，并且测量如此接收的激光束之间的基于时间的空间波动。 使用从激光源到每个目标点的相应距离来归一化基于时间的空间波动。 导出目标点处的激光束的归一化空间位置之间的差异，并用于获得空间位置的基于时间的波动的频谱。