Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation

ZUO Jin-xin; ZHANG Da-wei; NIE Jun-yuan; XIONG Liang-ming; MEI Kun; WANG Jin-qi; JIANG Qian-wen

doi:10.13756/j.gtxyj.2022.01.001

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Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation

更新时间：2022-06-15

- Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation
- Study on Optical Communications Issue 1, Pages: 1-5,44(2022)
- 作者机构：
  
  1.光纤光缆制备技术国家重点实验室，武汉　430073
  2.华中科技大学　电子信息与通信学院，武汉　430074
  3.上海无线电设备研究所，上海　200082
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2022.01.001
  CLC： TN929.1
- Published：10 February 2022，
  
  Received：28 January 2021，
扫描看全文
ZUO Jin-xin, ZHANG Da-wei, NIE Jun-yuan, et al. Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation. [J]. Study on Optical Communications (1):1-5,44(2022)
DOI：

ZUO Jin-xin, ZHANG Da-wei, NIE Jun-yuan, et al. Multi-frequency Phase Laser Ranging based on Delta-Sigma Modulation. [J]. Study on Optical Communications (1):1-5,44(2022) DOI： 10.13756/j.gtxyj.2022.01.001.

摘要

为解决激光卫星终端在完成通信功能的同时，也能够实现测距功能的问题，文章设计了基于Delta-Sigma调制方式实现的激光相位测距，可以实现通信与测距一体化，采用多频点相位测距兼顾测距范围与测距精度。多频点调制信号都是使用基于Delta-Sigma调制的高速数字输入输出(I/O)端口生成的，而不采用任何数模转换器(DAC)。基于Delta-Sigma调制方式，用于多频相位测距的多频点可以同时产生，优于传统的每个单频点分别产生的方法。选取187.50 MHz的高频和1.50 MHz的低频测尺，可实现测距范围为100 m以内并且测距精度达到1 mm的测距要求。

Abstract

In order to solve the problem that the laser satellite terminal can realize the ranging function while completing the communication function

this paper designs a method based on the Delta-Sigma modulation to realize the laser phase ranging

which can integrate the functions of communication and ranging. Multi-frequency point phase ranging is used to balance ranging range and ranging accuracy. Multi-frequency modulation signals are generated using high-speed digital Input and Output (I/O) ports based on Delta-Sigma modulation without any Digital-to-Analog Converter (DAC). Based on the Delta-Sigma modulation method

multiple frequency points for multi-frequency phase ranging can be generated at the same time

which is better than the traditional method of generating each single frequency point separately. Selecting the high frequency of 187.50 MHz and the low frequency of 1.50 MHz

the ranging accuracy can achieve 1 mm in the range of less than 100 m.

关键词

激光相位测距Delta-Sigma输入输出端口数模转换器

Keywords

laser phase rangingDelta-SigmaI/O portDAC

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