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基于DSM的高精度激光测距方法与自由空间光通信集成

Xueyuan Ao, Qirun Fan, Yizhou Wang

|November 22, 2024

概括

这项研究引入了一个集成的自由空间光通信 (FSOC) 和激光测距系统. 这种新的方法实现了高度精确的距离测量 (∼0.303毫米RMSE) 和更快的通信速度.

科学领域:

光学工程是指光学工程.
通信系统通信系统
传感技术传感技术

背景情况:

自由空间光通信 (FSOC) 正在迅速发展,包括卫星,无人机和水下系统在内的各种应用.
高精度的位置和距离信息在许多FSOC应用中至关重要,通常需要专门的激光测距技术.
现有的集成FSOC和激光测距解决方案在测距准确性方面存在局限性,通常在毫米级别.

研究的目的:

为了提高激光测距的准确性,并在集成的FSOC架构中提高通信速率.
开发一种新的方法,将激光测距与高速FSOC相结合,以减少终端尺寸,重量和功率.
展示一种新的方法,以实现集成光通信系统中的亚毫米范围精度.

主要方法:

提出了一种和相位测距方法,与三角形-西格玛调制 (DSM) 集成.
在10Gb/s连贯的FSOC系统上实现了该方法.
利用DSM将波信号转换为数字数据,用于与通信数据的联合传输.

主要成果:

实现了激光测距的根平均平方误差 (RMSE) 约为0.303毫米.
成功地将激光测距能力集成到高速FSOC链路中.
与现有的毫米级解决方案相比,证明了更好的距离精度.

结论:

拟议的波相位测距方法与DSM相结合,可提供卓越的激光测距精度.
集成架构有效地将高精度范围与高速FSOC相结合.
这种方法对于需要精确距离测量和光通信中的高数据速率的应用具有显著的优势.

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